{
  "spec_version": "5",
  "endpoint": "ceo-person",
  "stock_code": "onoda-cement",
  "company_name": "小野田セメント",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/onoda-cement/executives/ceo/oshima-kenji/",
  "api_url": "/api/onoda-cement/ceo/oshima-kenji.json",
  "updated": "2026-10-27",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/onoda-cement/executives/ceo/oshima-kenji/",
  "source": {
    "person": {
      "primary": [
        "有価証券報告書（役員の状況）"
      ],
      "extraction": "EDINET の XBRL から機械抽出した役員表を土台に、雑誌記事・社史・報道で経歴と出自を補完",
      "caveat": "在任区間は career の is_ceo_appointed が正本。退任年月は次の代の就任年月から決まる"
    }
  },
  "person": {
    "slug": "oshima-kenji",
    "name": "大島健司",
    "kana": "おおしま　けんじ",
    "surname": "大島",
    "given_name": "健司",
    "birthdate": "1915",
    "hometown": "佐賀県佐賀市",
    "education": "京都帝国大学法学部／現・京都大学法学部 (1937)",
    "prev_role": "専務取締役",
    "origin": "生え抜き（1940年入社）。名古屋支店長を経て、1972年に新設の関連製品営業部を率いて多角化を担った営業畑。松本幸市氏の急逝で専務取締役から昇格した",
    "origin_type": "生え抜き",
    "career": [
      {
        "company": "小野田セメント",
        "from": "1940-07",
        "to": null,
        "roles": [
          {
            "date": "1940-07",
            "role": "入社"
          },
          {
            "date": "1965-05",
            "role": "名古屋支店長"
          },
          {
            "date": "1966-11",
            "role": "取締役"
          },
          {
            "date": "1970-07",
            "role": "常務取締役（関連製品営業部長）"
          },
          {
            "date": "1976-06",
            "role": "取締役社長",
            "is_ceo_appointed": true
          },
          {
            "date": "1985-06",
            "role": "取締役会長",
            "is_ceo_retired": true,
            "retirement_basis": "press"
          }
        ]
      }
    ],
    "references": [
      {
        "source": "日経ビジネス 1977年2月28日号「新社長登場」略歴欄",
        "for": [
          "career",
          "education",
          "hometown",
          "birthdate"
        ]
      },
      {
        "source": "日本企業要覧 1974年版【役員の略歴】",
        "url": "https://dl.ndl.go.jp/pid/11937688/1/428",
        "for": [
          "career"
        ]
      },
      {
        "source": "日経ビジネス 1986年1月20日号「本業大事では創造などできぬ 大島健司（小野田セメント会長）」",
        "for": [
          "career",
          "origin"
        ]
      },
      {
        "source": "小野田セメント百年史（日本経営史研究所編、1981年） 口絵「歴代社長」・第9章",
        "for": [
          "career"
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/onoda-cement/executives/ceo/oshima-kenji/",
    "term_start": "1976-06",
    "term_end": "1985-06",
    "api_url": "https://the-shashi.com/api/onoda-cement/ceo/oshima-kenji.json",
    "list_api_url": "https://the-shashi.com/api/onoda-cement/ceo.json",
    "predecessor": {
      "slug": "matsumoto-koichi",
      "name": "松本幸市",
      "api_url": "https://the-shashi.com/api/onoda-cement/ceo/matsumoto-koichi.json"
    },
    "successor": {
      "slug": "imamura-kazusuke",
      "name": "今村一輔",
      "api_url": "https://the-shashi.com/api/onoda-cement/ceo/imamura-kazusuke.json"
    }
  }
}