{
  "spec_version": "6",
  "endpoint": "ceo-person",
  "stock_code": "5406",
  "company_name": "神戸製鋼所",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/5406/executives/ceo/kumamoto-masahiro/",
  "api_url": "/api/5406/ceo/kumamoto-masahiro.json",
  "updated": "2026-10-29",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/5406/executives/ceo/kumamoto-masahiro/",
  "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": "kumamoto-masahiro",
    "name": "熊本昌弘",
    "kana": "くまもと　まさひろ",
    "surname": "熊本",
    "given_name": "昌弘",
    "origin": "生え抜き（1960年入社）。神戸製鉄所の原料担当や本社総務課長を経て1987年に取締役、1993年に副社長。「全員参加」を掲げる協調型の経営者と評された",
    "origin_type": "生え抜き",
    "hometown": "大阪府",
    "education": "東北大学法学部 (1960)",
    "prev_role": "副社長",
    "career": [
      {
        "company": "神戸製鋼所",
        "from": "1960-04",
        "to": null,
        "roles": [
          {
            "date": "1960-04",
            "role": "入社",
            "event": "入社"
          },
          {
            "date": "1987",
            "role": "取締役",
            "board": "取締役"
          },
          {
            "date": "1993",
            "role": "副社長",
            "title": "副社長"
          },
          {
            "date": "1996-06",
            "role": "代表取締役社長",
            "board": "代表取締役",
            "title": "社長",
            "is_ceo_appointed": true
          },
          {
            "date": "1999-04",
            "role": "取締役会長",
            "board": "取締役",
            "title": "会長"
          },
          {
            "date": "1999-04",
            "role": "社長退任（次期社長登用による推定）",
            "title": "社長",
            "event": "退任",
            "estimated": true,
            "is_ceo_retired": true,
            "retirement_basis": "next_ceo"
          }
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/5406/executives/ceo/kumamoto-masahiro/",
    "term_start": "1996-06",
    "term_end": "1999-04",
    "api_url": "https://the-shashi.com/api/5406/ceo/kumamoto-masahiro.json",
    "list_api_url": "https://the-shashi.com/api/5406/ceo.json",
    "predecessor": {
      "slug": "kametaka-sokichi",
      "name": "亀高素吉",
      "api_url": "https://the-shashi.com/api/5406/ceo/kametaka-sokichi.json"
    },
    "successor": {
      "slug": "mizukoshi-koshi",
      "name": "水越浩士",
      "api_url": "https://the-shashi.com/api/5406/ceo/mizukoshi-koshi.json"
    }
  }
}