{
  "spec_version": "6",
  "endpoint": "ceo-person",
  "stock_code": "9104",
  "company_name": "商船三井",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/9104/executives/ceo/ikuta-masaharu/",
  "api_url": "/api/9104/ceo/ikuta-masaharu.json",
  "updated": "2026-11-12",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/9104/executives/ceo/ikuta-masaharu/",
  "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": "ikuta-masaharu",
    "name": "生田正治",
    "kana": "いくた　まさはる",
    "surname": "生田",
    "given_name": "正治",
    "origin": "生え抜き（1957年三井船舶入社）。定期航路畑。社長・会長を経て日本郵政公社初代総裁へ",
    "origin_type": "生え抜き",
    "hometown": "兵庫県",
    "prev_role": "専務取締役",
    "career": [
      {
        "company": "三井船舶→大阪商船三井船舶→商船三井",
        "from": "1957-04",
        "to": 2003,
        "roles": [
          {
            "date": "1957-04",
            "role": "三井船舶に入社"
          },
          {
            "date": null,
            "role": "定航一部長",
            "dept": "定航一部長"
          },
          {
            "date": null,
            "role": "取締役北米部長",
            "board": "取締役",
            "dept": "北米部長"
          },
          {
            "date": "1989",
            "role": "常務取締役",
            "board": "取締役",
            "title": "常務"
          },
          {
            "date": "1991",
            "role": "専務取締役",
            "board": "取締役",
            "title": "専務"
          },
          {
            "date": "1994-06",
            "role": "取締役社長",
            "board": "取締役",
            "title": "社長",
            "is_ceo_appointed": true
          },
          {
            "date": "2000",
            "role": "取締役会長",
            "board": "取締役",
            "title": "会長"
          },
          {
            "date": "2000-06",
            "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"
          }
        ]
      },
      {
        "company": "日本郵政公社",
        "from": "2003-04",
        "to": "2007-03",
        "roles": [
          {
            "date": "2003-04",
            "role": "初代総裁"
          }
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/9104/executives/ceo/ikuta-masaharu/",
    "term_start": "1994-06",
    "term_end": "2000-06",
    "api_url": "https://the-shashi.com/api/9104/ceo/ikuta-masaharu.json",
    "list_api_url": "https://the-shashi.com/api/9104/ceo.json",
    "predecessor": {
      "slug": "tenporin-susumu",
      "name": "轉法輪奏",
      "api_url": "https://the-shashi.com/api/9104/ceo/tenporin-susumu.json"
    },
    "successor": {
      "slug": "suzuki-kunio",
      "name": "鈴木邦雄",
      "api_url": "https://the-shashi.com/api/9104/ceo/suzuki-kunio.json"
    }
  }
}