CINXE.COM

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-sticky-header-enabled vector-toc-available" lang="ja" dir="ltr"> <head> <meta charset="UTF-8"> <title>KS鋼 - Wikipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-sticky-header-enabled vector-toc-available";var cookie=document.cookie.match(/(?:^|; )jawikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"ja", "wgMonthNames":["","1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月"],"wgRequestId":"b080c9d0-01f7-4d0e-b298-fefcfb3979f1","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"KS鋼","wgTitle":"KS鋼","wgCurRevisionId":103259921,"wgRevisionId":103259921,"wgArticleId":105117,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["鋼","磁石","本多光太郎","日本の発明"],"wgPageViewLanguage":"ja","wgPageContentLanguage":"ja","wgPageContentModel":"wikitext","wgRelevantPageName":"KS鋼","wgRelevantArticleId":105117,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":true,"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"ja","pageLanguageDir":"ltr", "pageVariantFallbacks":"ja"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":true,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":6000,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q24883533","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.gadget.PDFLinkIcon":"ready","ext.gadget.RedirectColor":"ready","ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":"ready", "skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","site","mediawiki.page.ready","mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.NormalizeCharWidth","ext.gadget.suppressEnterAtSummaryBox","ext.gadget.checkSignature","ext.gadget.charinsert","ext.gadget.WikiMiniAtlas","ext.gadget.switcher","ext.gadget.protectionIndicator","ext.urlShortener.toolbar","ext.centralauth.centralautologin","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions", "wikibase.client.vector-2022","ext.checkUser.clientHints","ext.growthExperiments.SuggestedEditSession"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=ja&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=ja&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=ja&modules=ext.gadget.PDFLinkIcon%2CRedirectColor&only=styles&skin=vector-2022"> <link rel="stylesheet" href="/w/load.php?lang=ja&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.17"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="KS鋼 - Wikipedia"> <meta property="og:type" content="website"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//ja.m.wikipedia.org/wiki/KS%E9%8B%BC"> <link rel="alternate" type="application/x-wiki" title="編集" href="/w/index.php?title=KS%E9%8B%BC&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (ja)"> <link rel="EditURI" type="application/rsd+xml" href="//ja.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://ja.wikipedia.org/wiki/KS%E9%8B%BC"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.ja"> <link rel="alternate" type="application/atom+xml" title="Wikipediaの Atom フィード" href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E6%9C%80%E8%BF%91%E3%81%AE%E6%9B%B4%E6%96%B0&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-KS鋼 rootpage-KS鋼 skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">コンテンツにスキップ</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="サイト"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" title="メインメニュー" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="メインメニュー" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">メインメニュー</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">メインメニュー</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">非表示</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> 案内 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8" title="メインページに移動する [z]" accesskey="z"><span>メインページ</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:%E3%82%B3%E3%83%9F%E3%83%A5%E3%83%8B%E3%83%86%E3%82%A3%E3%83%BB%E3%83%9D%E3%83%BC%E3%82%BF%E3%83%AB" title="このプロジェクトについて、できること、情報を入手する場所"><span>コミュニティ・ポータル</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Portal:%E6%9C%80%E8%BF%91%E3%81%AE%E5%87%BA%E6%9D%A5%E4%BA%8B" title="最近の出来事の背景を知る"><span>最近の出来事</span></a></li><li id="n-newpages" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E6%96%B0%E3%81%97%E3%81%84%E3%83%9A%E3%83%BC%E3%82%B8" title="最近新規に作成されたページの一覧"><span>新しいページ</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E6%9C%80%E8%BF%91%E3%81%AE%E6%9B%B4%E6%96%B0" title="このウィキにおける最近の更新の一覧 [r]" accesskey="r"><span>最近の更新</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E3%81%8A%E3%81%BE%E3%81%8B%E3%81%9B%E8%A1%A8%E7%A4%BA" title="無作為に選択されたページを読み込む [x]" accesskey="x"><span>おまかせ表示</span></a></li><li id="n-sandbox" class="mw-list-item"><a href="/wiki/Wikipedia:%E3%82%B5%E3%83%B3%E3%83%89%E3%83%9C%E3%83%83%E3%82%AF%E3%82%B9" title="練習用のページ"><span>練習用ページ</span></a></li><li id="n-commonsupload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard?uselang=ja" title="画像やメディアファイルをウィキメディア・コモンズにアップロード"><span>アップロード (ウィキメディア・コモンズ)</span></a></li><li id="n-specialpages" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E7%89%B9%E5%88%A5%E3%83%9A%E3%83%BC%E3%82%B8%E4%B8%80%E8%A6%A7"><span>特別ページ</span></a></li> </ul> </div> </div> <div id="p-help" class="vector-menu mw-portlet mw-portlet-help" > <div class="vector-menu-heading"> ヘルプ </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-help" class="mw-list-item"><a href="/wiki/Help:%E7%9B%AE%E6%AC%A1" title="情報を得る場所"><span>ヘルプ</span></a></li><li id="n-villagepump" class="mw-list-item"><a href="/wiki/Wikipedia:%E4%BA%95%E6%88%B8%E7%AB%AF" title="プロジェクトについての意見交換"><span>井戸端</span></a></li><li id="n-notice" class="mw-list-item"><a href="/wiki/Wikipedia:%E3%81%8A%E7%9F%A5%E3%82%89%E3%81%9B" title="プロジェクトについてのお知らせ"><span>お知らせ</span></a></li><li id="n-bugreportspage" class="mw-list-item"><a href="/wiki/Wikipedia:%E3%83%90%E3%82%B0%E3%81%AE%E5%A0%B1%E5%91%8A" title="ウィキペディア・ソフトウェアのバグ報告"><span>バグの報告</span></a></li><li id="n-contact" class="mw-list-item"><a href="/wiki/Wikipedia:%E9%80%A3%E7%B5%A1%E5%85%88" title="ウィキペディアやウィキメディア財団に関する連絡先"><span>ウィキペディアに関するお問い合わせ</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-ja.svg" style="width: 7.5em; height: 1.25em;"> <img class="mw-logo-tagline" alt="" src="/static/images/mobile/copyright/wikipedia-tagline-ja.svg" width="100" height="14" style="width: 6.25em; height: 0.875em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/%E7%89%B9%E5%88%A5:%E6%A4%9C%E7%B4%A2" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Wikipedia内を検索 [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>検索</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Wikipedia内を検索" aria-label="Wikipedia内を検索" autocapitalize="sentences" title="Wikipedia内を検索 [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="特別:検索"> </div> <button class="cdx-button cdx-search-input__end-button">検索</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="個人用ツール"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="表示"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="ページのフォントサイズ、幅、色の外観を変更する" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="表示" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">表示</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=ja.wikipedia.org&uselang=ja" class=""><span>寄付</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%82%A2%E3%82%AB%E3%82%A6%E3%83%B3%E3%83%88%E4%BD%9C%E6%88%90&returnto=KS%E9%8B%BC" title="アカウントを作成してログインすることをお勧めしますが、必須ではありません" class=""><span>アカウント作成</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%83%AD%E3%82%B0%E3%82%A4%E3%83%B3&returnto=KS%E9%8B%BC" title="ログインすることを推奨します。ただし、必須ではありません。 [o]" accesskey="o" class=""><span>ログイン</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="その他の操作" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="個人用ツール" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">個人用ツール</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="利用者メニュー" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=ja.wikipedia.org&uselang=ja"><span>寄付</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%82%A2%E3%82%AB%E3%82%A6%E3%83%B3%E3%83%88%E4%BD%9C%E6%88%90&returnto=KS%E9%8B%BC" title="アカウントを作成してログインすることをお勧めしますが、必須ではありません"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>アカウント作成</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%83%AD%E3%82%B0%E3%82%A4%E3%83%B3&returnto=KS%E9%8B%BC" title="ログインすることを推奨します。ただし、必須ではありません。 [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>ログイン</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> ログアウトした編集者のページ <a href="/wiki/Wikipedia:%E3%82%A6%E3%82%A3%E3%82%AD%E3%83%9A%E3%83%87%E3%82%A3%E3%82%A2%E3%81%B8%E3%82%88%E3%81%86%E3%81%93%E3%81%9D" aria-label="編集の詳細"><span>もっと詳しく</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E8%87%AA%E5%88%86%E3%81%AE%E6%8A%95%E7%A8%BF%E8%A8%98%E9%8C%B2" title="このIPアドレスからなされた編集の一覧 [y]" accesskey="y"><span>投稿記録</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E3%83%88%E3%83%BC%E3%82%AF%E3%83%9A%E3%83%BC%E3%82%B8" title="このIPアドレスからなされた編集についての議論 [n]" accesskey="n"><span>トーク</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="サイト"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="目次" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">目次</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">非表示</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">ページ先頭</div> </a> </li> <li id="toc-歴史" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#歴史"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>歴史</span> </div> </a> <ul id="toc-歴史-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-名前の由来" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#名前の由来"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>名前の由来</span> </div> </a> <ul id="toc-名前の由来-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-構造" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#構造"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>構造</span> </div> </a> <ul id="toc-構造-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-保磁力" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#保磁力"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>保磁力</span> </div> </a> <ul id="toc-保磁力-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-脚注" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#脚注"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>脚注</span> </div> </a> <ul id="toc-脚注-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="目次" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="目次" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="目次の表示・非表示を切り替え" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">目次の表示・非表示を切り替え</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">KS鋼</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="特定の記事の別の言語版に移動します。利用可能な言語1件" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-1" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">1の言語版</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/KS_Steel" title="英語: KS Steel" lang="en" hreflang="en" data-title="KS Steel" data-language-autonym="English" data-language-local-name="英語" class="interlanguage-link-target"><span>English</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q24883533#sitelinks-wikipedia" title="言語間リンクを編集" class="wbc-editpage">リンクを編集</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="名前空間"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/KS%E9%8B%BC" title="本文を閲覧 [c]" accesskey="c"><span>ページ</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/%E3%83%8E%E3%83%BC%E3%83%88:KS%E9%8B%BC" rel="discussion" title="本文ページについての議論 [t]" accesskey="t"><span>ノート</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="別の言語に切り替える" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">日本語</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="表示"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/KS%E9%8B%BC"><span>閲覧</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=KS%E9%8B%BC&action=edit" title="このページのソースコードを編集する [e]" accesskey="e"><span>編集</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=KS%E9%8B%BC&action=history" title="このページの過去の版 [h]" accesskey="h"><span>履歴を表示</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="ページツール"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="ツール" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">ツール</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">ツール</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">非表示</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="その他の操作" > <div class="vector-menu-heading"> 操作 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/KS%E9%8B%BC"><span>閲覧</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=KS%E9%8B%BC&action=edit" title="このページのソースコードを編集する [e]" accesskey="e"><span>編集</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=KS%E9%8B%BC&action=history"><span>履歴を表示</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> 全般 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E3%83%AA%E3%83%B3%E3%82%AF%E5%85%83/KS%E9%8B%BC" title="ここにリンクしている全ウィキページの一覧 [j]" accesskey="j"><span>リンク元</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E9%96%A2%E9%80%A3%E3%83%9A%E3%83%BC%E3%82%B8%E3%81%AE%E6%9B%B4%E6%96%B0%E7%8A%B6%E6%B3%81/KS%E9%8B%BC" rel="nofollow" title="このページからリンクしているページの最近の更新 [k]" accesskey="k"><span>関連ページの更新状況</span></a></li><li id="t-upload" class="mw-list-item"><a href="//ja.wikipedia.org/wiki/Wikipedia:ファイルのアップロード" title="ファイルをアップロードする [u]" accesskey="u"><span>ファイルをアップロード</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=KS%E9%8B%BC&oldid=103259921" title="このページのこの版への固定リンク"><span>この版への固定リンク</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=KS%E9%8B%BC&action=info" title="このページについての詳細情報"><span>ページ情報</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%81%93%E3%81%AE%E3%83%9A%E3%83%BC%E3%82%B8%E3%82%92%E5%BC%95%E7%94%A8&page=KS%E9%8B%BC&id=103259921&wpFormIdentifier=titleform" title="このページの引用方法"><span>このページを引用</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:UrlShortener&url=https%3A%2F%2Fja.wikipedia.org%2Fwiki%2FKS%25E9%258B%25BC"><span>短縮URLを取得する</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:QrCode&url=https%3A%2F%2Fja.wikipedia.org%2Fwiki%2FKS%25E9%258B%25BC"><span>QRコードをダウンロード</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> 印刷/書き出し </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%83%96%E3%83%83%E3%82%AF&bookcmd=book_creator&referer=KS%E9%8B%BC"><span>ブックの新規作成</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:DownloadAsPdf&page=KS%E9%8B%BC&action=show-download-screen"><span>PDF 形式でダウンロード</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=KS%E9%8B%BC&printable=yes" title="このページの印刷用ページ [p]" accesskey="p"><span>印刷用バージョン</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> 他のプロジェクト </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q24883533" title="関連付けられたデータリポジトリ項目へのリンク [g]" accesskey="g"><span>ウィキデータ項目</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="ページツール"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="表示"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">表示</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">非表示</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">出典: フリー百科事典『ウィキペディア（Wikipedia）』</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="ja" dir="ltr"><p><b>KS鋼</b>（KSこう、英: <span lang="en">KS steel</span>）は、<a href="/wiki/%E3%82%B3%E3%83%90%E3%83%AB%E3%83%88" title="コバルト">コバルト</a>・<a href="/wiki/%E3%82%BF%E3%83%B3%E3%82%B0%E3%82%B9%E3%83%86%E3%83%B3" title="タングステン">タングステン</a>・<a href="/wiki/%E3%82%AF%E3%83%AD%E3%83%A0" title="クロム">クロム</a>・<a href="/wiki/%E7%82%AD%E7%B4%A0" title="炭素">炭素</a>を含む<a href="/wiki/%E9%89%84" title="鉄">鉄</a>の<a href="/wiki/%E5%90%88%E9%87%91" title="合金">合金</a>（<a href="/w/index.php?title=%E7%A3%81%E7%9F%B3%E9%8B%BC&action=edit&redlink=1" class="new" title="磁石鋼 (存在しないページ)">磁石鋼</a>）である<sup id="cite_ref-imrnews57_1-0" class="reference"><a href="#cite_note-imrnews57-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>。また世界初の<a href="/wiki/%E6%B0%B8%E4%B9%85%E7%A3%81%E7%9F%B3" title="永久磁石">永久磁石</a><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-jfes.69.947_3-0" class="reference"><a href="#cite_note-jfes.69.947-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>であり、<b>KS磁石鋼</b>とも呼ぶ<sup id="cite_ref-jhsj.23.150_4-0" class="reference"><a href="#cite_note-jhsj.23.150-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-jhsj.23.151_5-0" class="reference"><a href="#cite_note-jhsj.23.151-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>。 </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="歴史"><span id=".E6.AD.B4.E5.8F.B2"></span>歴史</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=KS%E9%8B%BC&action=edit&section=1" title="節を編集: 歴史"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>KS鋼の開発以前は主にタングステンを約6<span class="nowrap"> </span>%含むタングステン鋼が磁石鋼として用いられてきたが、第一次世界大戦の勃発で輸入が途絶えてしまった<sup id="cite_ref-imrnews57_1-1" class="reference"><a href="#cite_note-imrnews57-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>。1916年（大正5年）、軍から要請を受け<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>、鉄の磁性研究に取り組んだ<sup id="cite_ref-jfes.69.947_3-2" class="reference"><a href="#cite_note-jfes.69.947-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>。その結果、1917年（大正6年）に<a href="/wiki/%E6%9D%B1%E5%8C%97%E5%A4%A7%E5%AD%A6" title="東北大学">東北帝国大学</a>の<a href="/wiki/%E6%9C%AC%E5%A4%9A%E5%85%89%E5%A4%AA%E9%83%8E" title="本多光太郎">本多光太郎</a>と<a href="/w/index.php?title=%E9%AB%98%E6%9C%A8%E5%BC%98_(%E5%86%B6%E9%87%91%E5%AD%A6%E8%80%85)&action=edit&redlink=1" class="new" title="高木弘 (冶金学者) (存在しないページ)">高木弘</a>によって発明され、当時としては世界最強の<a href="/wiki/%E6%B0%B8%E4%B9%85%E7%A3%81%E7%9F%B3" title="永久磁石">永久磁石</a>鋼として脚光を浴びた。また、同年に<a href="/wiki/%E7%89%B9%E8%A8%B1" title="特許">特許</a>出願し<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>（32234号）、特許権を<a href="/wiki/%E4%BD%8F%E5%8F%8B%E5%90%89%E5%B7%A6%E8%A1%9B%E9%96%80_(15%E4%BB%A3)" class="mw-redirect" title="住友吉左衛門 (15代)">住友吉左衛門</a>に無償で譲渡した<sup id="cite_ref-imrnews57_1-2" class="reference"><a href="#cite_note-imrnews57-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>。これをもとに住友は英・米・独・仏・伊の特許を請求し独シーメンス社、米ウェスティングハウス社が採用するに至り、その特許料を得た住友は東北帝国大学に30万円（当時の金額）を寄贈した<sup id="cite_ref-imrnews57_1-3" class="reference"><a href="#cite_note-imrnews57-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>。 </p><p>KS鋼の発明が、計測機器の性能を向上させ、工業発展に貢献し<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup>、さらに日本での磁性材料研究が活発になるきっかけを作った<sup id="cite_ref-jfes.69.947_3-3" class="reference"><a href="#cite_note-jfes.69.947-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-imrnews57_1-4" class="reference"><a href="#cite_note-imrnews57-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>。 </p><p>1931年（昭和6年）に、<a href="/wiki/%E6%9D%B1%E4%BA%AC%E5%A4%A7%E5%AD%A6" title="東京大学">東京帝国大学</a>の<a href="/wiki/%E4%B8%89%E5%B3%B6%E5%BE%B3%E4%B8%83" title="三島徳七">三島徳七</a>がKS鋼の2倍の保磁力を有する<a href="/wiki/MK%E9%8B%BC" title="MK鋼">MK鋼</a>を開発するが<sup id="cite_ref-jfes.69.947_3-4" class="reference"><a href="#cite_note-jfes.69.947-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>、1934年（昭和9年）の本多らによる<a href="/wiki/%E6%96%B0KS%E9%8B%BC" title="新KS鋼">新KS鋼</a>は、再び最強の磁石となった<sup id="cite_ref-jfes.69.947_3-5" class="reference"><a href="#cite_note-jfes.69.947-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>。 </p> <div class="mw-heading mw-heading2"><h2 id="名前の由来"><span id=".E5.90.8D.E5.89.8D.E3.81.AE.E7.94.B1.E6.9D.A5"></span>名前の由来</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=KS%E9%8B%BC&action=edit&section=2" title="節を編集: 名前の由来"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>KSとは、本多らが所属する東北帝国大学臨時理化学研究所（後の<a href="/wiki/%E9%87%91%E5%B1%9E%E6%9D%90%E6%96%99%E7%A0%94%E7%A9%B6%E6%89%80" class="mw-redirect" title="金属材料研究所">金属材料研究所</a>）に多額の研究費を寄付した住友吉左衛門（<a href="/wiki/%E4%BD%8F%E5%8F%8B%E3%82%B0%E3%83%AB%E3%83%BC%E3%83%97" title="住友グループ">住友グループ</a>の前身・住友総本店店主、住友家第15代目当主）のイニシャルである<sup id="cite_ref-imrnews57_1-5" class="reference"><a href="#cite_note-imrnews57-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-jfes.69.947_3-6" class="reference"><a href="#cite_note-jfes.69.947-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>。 </p> <div class="mw-heading mw-heading2"><h2 id="構造"><span id=".E6.A7.8B.E9.80.A0"></span>構造</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=KS%E9%8B%BC&action=edit&section=3" title="節を編集: 構造"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>コバルト・タングステン・クロムを含む特殊鋼であり、その組成範囲はコバルト30〜40<span class="nowrap"> </span>%、タングステンが5〜9<span class="nowrap"> </span>%、クロムが1.5〜3<span class="nowrap"> </span>%、炭素が0.4〜0.8<span class="nowrap"> </span>%で残りが鉄である合金である<sup id="cite_ref-jhsj.23.150_4-1" class="reference"><a href="#cite_note-jhsj.23.150-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup>。 </p> <div class="mw-heading mw-heading2"><h2 id="保磁力"><span id=".E4.BF.9D.E7.A3.81.E5.8A.9B"></span>保磁力</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=KS%E9%8B%BC&action=edit&section=4" title="節を編集: 保磁力"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>当時の高性能磁石であったタングステン鋼（約70<a href="/wiki/%E3%82%A8%E3%83%AB%E3%82%B9%E3%83%86%E3%83%83%E3%83%89" title="エルステッド">エルステッド</a>）の約3倍の<a href="/wiki/%E4%BF%9D%E7%A3%81%E5%8A%9B" title="保磁力">保磁力</a>（250エルステッド）を有した<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-imrnews57_1-6" class="reference"><a href="#cite_note-imrnews57-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-jfes.69.947_3-7" class="reference"><a href="#cite_note-jfes.69.947-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>。 </p> <div class="mw-heading mw-heading2"><h2 id="脚注"><span id=".E8.84.9A.E6.B3.A8"></span>脚注</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=KS%E9%8B%BC&action=edit&section=5" title="節を編集: 脚注"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="noprint" style="float:right; font-size:90%;">[<a href="/wiki/Help:%E8%84%9A%E6%B3%A8/%E8%AA%AD%E8%80%85%E5%90%91%E3%81%91" title="Help:脚注/読者向け"><span title="この欄の操作法">脚注の使い方</span></a>]</div> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-imrnews57-1">^ <a href="#cite_ref-imrnews57_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-imrnews57_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-imrnews57_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-imrnews57_1-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-imrnews57_1-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-imrnews57_1-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-imrnews57_1-6"><sup><i><b>g</b></i></sup></a> <span class="reference-text"><cite style="font-style:normal" class="citation journal">石本賢一 (2008). <a rel="nofollow" class="external text" href="http://www.imr.tohoku.ac.jp/media/files/public/archive/kinken_story/mono-57.pdf">“先達との出逢い金研物語第二部”</a> (PDF). <i>KINKEN</i> (東北大学金属材料研究所) <b>57</b> (Autumn)<span style="display:none;">. <a rel="nofollow" class="external free" href="http://www.imr.tohoku.ac.jp/media/files/public/archive/kinken_story/mono-57.pdf">http://www.imr.tohoku.ac.jp/media/files/public/archive/kinken_story/mono-57.pdf</a></span> <span class="reference-accessdate"><span title="">2023年4月17日</span>閲覧。</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=%E5%85%88%E9%81%94%E3%81%A8%E3%81%AE%E5%87%BA%E9%80%A2%E3%81%84+%E9%87%91%E7%A0%94%E7%89%A9%E8%AA%9E+%E7%AC%AC%E4%BA%8C%E9%83%A8&rft.jtitle=KINKEN&rft.aulast=%E7%9F%B3%E6%9C%AC%E8%B3%A2%E4%B8%80&rft.au=%E7%9F%B3%E6%9C%AC%E8%B3%A2%E4%B8%80&rft.date=2008&rft.volume=57&rft.issue=Autumn&rft.pub=%E6%9D%B1%E5%8C%97%E5%A4%A7%E5%AD%A6+%E9%87%91%E5%B1%9E%E6%9D%90%E6%96%99%E7%A0%94%E7%A9%B6%E6%89%80&rft_id=http%3A%2F%2Fwww.imr.tohoku.ac.jp%2Fmedia%2Ffiles%2Fpublic%2Farchive%2Fkinken_story%2Fmono-57.pdf&rfr_id=info:sid/ja.wikipedia.org:KS%E9%8B%BC"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-2"><b><a href="#cite_ref-2">^</a></b> <span class="reference-text"><cite class="citation web" style="font-style:normal">“<a rel="nofollow" class="external text" href="https://news.1242.com/article/157589">世界初の超強力『永久磁石』は日本人が開発</a>”. <i>ニッポン放送ラジオAM1242+FM93</i>. <span title="">2019年12月26日</span>閲覧。</cite></span> </li> <li id="cite_note-jfes.69.947-3">^ <a href="#cite_ref-jfes.69.947_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-jfes.69.947_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-jfes.69.947_3-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-jfes.69.947_3-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-jfes.69.947_3-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-jfes.69.947_3-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-jfes.69.947_3-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-jfes.69.947_3-7"><sup><i><b>h</b></i></sup></a> <span class="reference-text"><cite style="font-style:normal" class="citation journal" id="CITEREF木村康夫1997">木村康夫「<a rel="nofollow" class="external text" href="https://doi.org/10.11279/jfes.69.947">新材料と先駆者たち</a>」『鋳造工学』第69巻第11号、1997年、947-948頁、<a href="/wiki/Doi_(%E8%AD%98%E5%88%A5%E5%AD%90)" class="mw-redirect" title="Doi (識別子)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.11279%2Fjfes.69.947">10.11279/jfes.69.947</a>、<span class="reference-accessdate"><span title="">2023年4月17日</span>閲覧</span>。</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=%E6%96%B0%E6%9D%90%E6%96%99%E3%81%A8%E5%85%88%E9%A7%86%E8%80%85%E3%81%9F%E3%81%A1&rft.jtitle=%E9%8B%B3%E9%80%A0%E5%B7%A5%E5%AD%A6&rft.aulast=%E6%9C%A8%E6%9D%91%E5%BA%B7%E5%A4%AB&rft.au=%E6%9C%A8%E6%9D%91%E5%BA%B7%E5%A4%AB&rft.volume=69&rft.issue=11&rft.pages=947-948%E9%A0%81&rft_id=info:doi/10.11279%2Fjfes.69.947&rft_id=https%3A%2F%2Fdoi.org%2F10.11279%2Fjfes.69.947&rfr_id=info:sid/ja.wikipedia.org:KS%E9%8B%BC"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-jhsj.23.150-4">^ <a href="#cite_ref-jhsj.23.150_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-jhsj.23.150_4-1"><sup><i><b>b</b></i></sup></a> <span class="reference-text"><cite style="font-style:normal" class="citation journal">勝木渥「KS磁石鋼の発明過程（Ⅰ）」『科学史研究』第23巻第150号、日本科学史学会、1984年、96-109頁、<a href="/wiki/Doi_(%E8%AD%98%E5%88%A5%E5%AD%90)" class="mw-redirect" title="Doi (識別子)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.34336%2Fjhsj.23.150_96">10.34336/jhsj.23.150_96</a>。</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=KS%E7%A3%81%E7%9F%B3%E9%8B%BC%E3%81%AE%E7%99%BA%E6%98%8E%E9%81%8E%E7%A8%8B%EF%BC%88%E2%85%A0%EF%BC%89&rft.jtitle=%E7%A7%91%E5%AD%A6%E5%8F%B2%E7%A0%94%E7%A9%B6&rft.aulast=%E5%8B%9D%E6%9C%A8%E6%B8%A5&rft.au=%E5%8B%9D%E6%9C%A8%E6%B8%A5&rft.date=1984&rft.volume=23&rft.issue=150&rft.pages=96-109%E9%A0%81&rft.pub=%E6%97%A5%E6%9C%AC%E7%A7%91%E5%AD%A6%E5%8F%B2%E5%AD%A6%E4%BC%9A&rft_id=info:doi/10.34336%2Fjhsj.23.150_96&rfr_id=info:sid/ja.wikipedia.org:KS%E9%8B%BC"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-jhsj.23.151-5"><b><a href="#cite_ref-jhsj.23.151_5-0">^</a></b> <span class="reference-text"><cite style="font-style:normal" class="citation journal">勝木渥「KS磁石鋼の発明過程（Ⅱ）」『科学史研究』第23巻第151号、日本科学史学会、1984年、150-161頁、<a href="/wiki/Doi_(%E8%AD%98%E5%88%A5%E5%AD%90)" class="mw-redirect" title="Doi (識別子)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.34336%2Fjhsj.23.151_150">10.34336/jhsj.23.151_150</a>。</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=KS%E7%A3%81%E7%9F%B3%E9%8B%BC%E3%81%AE%E7%99%BA%E6%98%8E%E9%81%8E%E7%A8%8B%EF%BC%88%E2%85%A1%EF%BC%89&rft.jtitle=%E7%A7%91%E5%AD%A6%E5%8F%B2%E7%A0%94%E7%A9%B6&rft.aulast=%E5%8B%9D%E6%9C%A8%E6%B8%A5&rft.au=%E5%8B%9D%E6%9C%A8%E6%B8%A5&rft.date=1984&rft.volume=23&rft.issue=151&rft.pages=150-161%E9%A0%81&rft.pub=%E6%97%A5%E6%9C%AC%E7%A7%91%E5%AD%A6%E5%8F%B2%E5%AD%A6%E4%BC%9A&rft_id=info:doi/10.34336%2Fjhsj.23.151_150&rfr_id=info:sid/ja.wikipedia.org:KS%E9%8B%BC"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-6"><b><a href="#cite_ref-6">^</a></b> <span class="reference-text">岡本少将が要請した、との記述がある<sup id="cite_ref-jfes.69.947_3-1" class="reference"><a href="#cite_note-jfes.69.947-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>。</span> </li> <li id="cite_note-7"><b><a href="#cite_ref-7">^</a></b> <span class="reference-text"><cite class="citation web" style="font-style:normal">“<a rel="nofollow" class="external text" href="http://www.koyamapat.jp/2019/10/20/honda_patent_32234/">本多光太郎のＫＳ鋼特許 – 小山特許事務所</a>”. <span title="">2019年12月26日</span>閲覧。</cite></span> </li> <li id="cite_note-8"><b><a href="#cite_ref-8">^</a></b> <span class="reference-text"><cite class="citation web" style="font-style:normal">“<a rel="nofollow" class="external text" href="http://kigs.jp/db/history.php?nid=645">北九州イノベーションギャラリー｜Kitakyushu Innovation Gallery & Studio [KIGS</a>]”. <i>kigs.jp</i>. <span title="">2019年12月26日</span>閲覧。</cite></span> </li> <li id="cite_note-9"><b><a href="#cite_ref-9">^</a></b> <span class="reference-text">コバルト30〜35<span class="nowrap"> </span>%、タングステンが4〜7<span class="nowrap"> </span>%、クロムが2〜5<span class="nowrap"> </span>%、炭素が0.8<span class="nowrap"> </span>%とする資料もある(<a href="#CITEREF木村康夫1997">木村康夫 1997</a>)。</span> </li> <li id="cite_note-10"><b><a href="#cite_ref-10">^</a></b> <span class="reference-text"><cite class="citation web" style="font-style:normal">“<a rel="nofollow" class="external text" href="https://www.26magnet.co.jp/database/mag-history/no16.html">データベース｜磁石はマグネットワールド【株式会社二六製作所】 - 本多光太郎が『KS鋼』を開発する</a>”. <i>www.26magnet.co.jp</i>. <span title="">2019年12月26日</span>閲覧。</cite></span> </li> </ol></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">「<a dir="ltr" href="https://ja.wikipedia.org/w/index.php?title=KS鋼&oldid=103259921">https://ja.wikipedia.org/w/index.php?title=KS鋼&oldid=103259921</a>」から取得</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/%E7%89%B9%E5%88%A5:%E3%82%AB%E3%83%86%E3%82%B4%E3%83%AA" title="特別:カテゴリ">カテゴリ</a>: <ul><li><a href="/wiki/Category:%E9%8B%BC" title="Category:鋼">鋼</a></li><li><a href="/wiki/Category:%E7%A3%81%E7%9F%B3" title="Category:磁石">磁石</a></li><li><a href="/wiki/Category:%E6%9C%AC%E5%A4%9A%E5%85%89%E5%A4%AA%E9%83%8E" title="Category:本多光太郎">本多光太郎</a></li><li><a href="/wiki/Category:%E6%97%A5%E6%9C%AC%E3%81%AE%E7%99%BA%E6%98%8E" title="Category:日本の発明">日本の発明</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> 最終更新 2025年1月10日 (金) 09:32 （日時は<a href="/wiki/%E7%89%B9%E5%88%A5:%E5%80%8B%E4%BA%BA%E8%A8%AD%E5%AE%9A#mw-prefsection-rendering" title="特別:個人設定">個人設定</a>で未設定ならば<a href="/wiki/%E5%8D%94%E5%AE%9A%E4%B8%96%E7%95%8C%E6%99%82" title="協定世界時">UTC</a>）。</li> <li id="footer-info-copyright">テキストは<a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.ja">クリエイティブ・コモンズ表示-継承ライセンス</a>のもとで利用できます。追加の条件が適用される場合があります。詳細については<a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use">利用規約</a>を参照してください。</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy/ja">プライバシー・ポリシー</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:%E3%82%A6%E3%82%A3%E3%82%AD%E3%83%9A%E3%83%87%E3%82%A3%E3%82%A2%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6">ウィキペディアについて</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:%E5%85%8D%E8%B2%AC%E4%BA%8B%E9%A0%85">免責事項</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">行動規範</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">開発者</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/ja.wikipedia.org">統計</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookieに関する声明</a></li> <li id="footer-places-mobileview"><a href="//ja.m.wikipedia.org/w/index.php?title=KS%E9%8B%BC&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">モバイルビュー</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><picture><source media="(min-width: 500px)" srcset="/static/images/footer/wikimedia-button.svg" width="84" height="29"><img src="/static/images/footer/wikimedia.svg" width="25" height="25" alt="Wikimedia Foundation" lang="en" loading="lazy"></picture></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><picture><source media="(min-width: 500px)" srcset="/w/resources/assets/poweredby_mediawiki.svg" width="88" height="31"><img src="/w/resources/assets/mediawiki_compact.svg" alt="Powered by MediaWiki" width="25" height="25" loading="lazy"></picture></a></li> </ul> </footer> </div> </div> </div> <div class="vector-header-container vector-sticky-header-container"> <div id="vector-sticky-header" class="vector-sticky-header"> <div class="vector-sticky-header-start"> <div class="vector-sticky-header-icon-start vector-button-flush-left vector-button-flush-right" aria-hidden="true"> <button class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-sticky-header-search-toggle" tabindex="-1" data-event-name="ui.vector-sticky-search-form.icon"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>検索</span> </button> </div> <div role="search" class="vector-search-box-vue vector-search-box-show-thumbnail vector-search-box"> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail"> <form action="/w/index.php" id="vector-sticky-search-form" class="cdx-search-input cdx-search-input--has-end-button"> <div class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Wikipedia内を検索"> <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="特別:検索"> </div> <button class="cdx-button cdx-search-input__end-button">検索</button> </form> </div> </div> </div> <div class="vector-sticky-header-context-bar"> <nav aria-label="目次" class="vector-toc-landmark"> <div id="vector-sticky-header-toc" class="vector-dropdown mw-portlet mw-portlet-sticky-header-toc vector-sticky-header-toc vector-button-flush-left" > <input type="checkbox" id="vector-sticky-header-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-sticky-header-toc" class="vector-dropdown-checkbox " aria-label="目次の表示・非表示を切り替え" > <label id="vector-sticky-header-toc-label" for="vector-sticky-header-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">目次の表示・非表示を切り替え</span> </label> <div class="vector-dropdown-content"> <div id="vector-sticky-header-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div class="vector-sticky-header-context-bar-primary" aria-hidden="true" ><span class="mw-page-title-main">KS鋼</span></div> </div> </div> <div class="vector-sticky-header-end" aria-hidden="true"> <div class="vector-sticky-header-icons"> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-talk-sticky-header" tabindex="-1" data-event-name="talk-sticky-header"><span class="vector-icon mw-ui-icon-speechBubbles mw-ui-icon-wikimedia-speechBubbles"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-subject-sticky-header" tabindex="-1" data-event-name="subject-sticky-header"><span class="vector-icon mw-ui-icon-article mw-ui-icon-wikimedia-article"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-history-sticky-header" tabindex="-1" data-event-name="history-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-history mw-ui-icon-wikimedia-wikimedia-history"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only mw-watchlink" id="ca-watchstar-sticky-header" tabindex="-1" data-event-name="watch-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-star mw-ui-icon-wikimedia-wikimedia-star"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-edit-sticky-header" tabindex="-1" data-event-name="wikitext-edit-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-wikiText mw-ui-icon-wikimedia-wikimedia-wikiText"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-ve-edit-sticky-header" tabindex="-1" data-event-name="ve-edit-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-edit mw-ui-icon-wikimedia-wikimedia-edit"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-viewsource-sticky-header" tabindex="-1" data-event-name="ve-edit-protected-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-editLock mw-ui-icon-wikimedia-wikimedia-editLock"></span> <span></span> </a> </div> <div class="vector-sticky-header-buttons"> <button class="cdx-button cdx-button--weight-quiet mw-interlanguage-selector" id="p-lang-btn-sticky-header" tabindex="-1" data-event-name="ui.dropdown-p-lang-btn-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-language mw-ui-icon-wikimedia-wikimedia-language"></span> <span>1の言語版</span> </button> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive" id="ca-addsection-sticky-header" tabindex="-1" data-event-name="addsection-sticky-header"><span class="vector-icon mw-ui-icon-speechBubbleAdd-progressive mw-ui-icon-wikimedia-speechBubbleAdd-progressive"></span> <span>話題追加</span> </a> </div> <div class="vector-sticky-header-icon-end"> <div class="vector-user-links"> </div> </div> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-d8647bfd6-96cl8","wgBackendResponseTime":109,"wgPageParseReport":{"limitreport":{"cputime":"0.138","walltime":"0.160","ppvisitednodes":{"value":5466,"limit":1000000},"postexpandincludesize":{"value":29093,"limit":2097152},"templateargumentsize":{"value":8371,"limit":2097152},"expansiondepth":{"value":26,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":12956,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 140.861 1 -total"," 73.71% 103.822 1 Template:Reflist"," 54.16% 76.290 4 Template:Cite_journal"," 32.57% 45.877 3 Template:Cite_journal/和書"," 18.18% 25.613 1 Template:Citation/core"," 13.74% 19.350 4 Template:Cite_web"," 10.56% 14.874 6 Template:Accessdate"," 9.79% 13.787 9 Template:Nbsp"," 8.43% 11.877 6 Template:Accessdate/core"," 7.24% 10.200 2 Template:Refnest"]},"scribunto":{"limitreport-timeusage":{"value":"0.009","limit":"10.000"},"limitreport-memusage":{"value":1193119,"limit":52428800}},"cachereport":{"origin":"mw-web.codfw.main-84749c7844-8f2xl","timestamp":"20250209101439","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"KS\u92fc","url":"https:\/\/ja.wikipedia.org\/wiki\/KS%E9%8B%BC","sameAs":"http:\/\/www.wikidata.org\/entity\/Q24883533","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q24883533","author":{"@type":"Organization","name":"\u30a6\u30a3\u30ad\u30e1\u30c7\u30a3\u30a2\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3078\u306e\u8ca2\u732e\u8005"},"publisher":{"@type":"Organization","name":"\u30a6\u30a3\u30ad\u30e1\u30c7\u30a3\u30a2\u8ca1\u56e3","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2004-06-28T09:00:44Z","dateModified":"2025-01-10T09:32:52Z"}</script> </body> </html>