{
  "spec_version": "6",
  "endpoint": "ceo-person",
  "stock_code": "jp-ibm",
  "company_name": "日本アイ・ビー・エム",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/jp-ibm/executives/ceo/inagaki-hayao/",
  "api_url": "/api/jp-ibm/ceo/inagaki-hayao.json",
  "updated": "2026-10-29",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/jp-ibm/executives/ceo/inagaki-hayao/",
  "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": "inagaki-hayao",
    "name": "稲垣早苗",
    "surname": "稲垣",
    "given_name": "早苗",
    "hometown": null,
    "education": null,
    "prev_role": "営業担当副社長",
    "career": [
      {
        "company": "日本統計機",
        "from": "1943",
        "to": null,
        "roles": [
          {
            "date": "1943",
            "role": "東京芝浦電気の縁故で入社"
          },
          {
            "date": "1946",
            "role": "占領期もIBM統計機の保守を継続"
          }
        ]
      },
      {
        "company": "日本アイ・ビー・エム",
        "from": "1949",
        "to": null,
        "roles": [
          {
            "date": "1962-10",
            "role": "代表取締役社長",
            "board": "代表取締役",
            "title": "社長",
            "is_ceo_appointed": true
          },
          {
            "date": "1975-02-28",
            "role": "代表取締役会長（代表権を保持）",
            "board": "代表取締役",
            "title": "会長"
          },
          {
            "date": "1975-02",
            "role": "社長退任",
            "title": "社長",
            "event": "退任",
            "is_ceo_retired": true,
            "retirement_basis": "history"
          }
        ]
      }
    ],
    "references": [
      {
        "source": "日本アイ・ビー・エム50年史（日本アイ・ビー・エム、1988年）年表",
        "url": "https://dl.ndl.go.jp/pid/13090659",
        "for": [
          "career"
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/jp-ibm/executives/ceo/inagaki-hayao/",
    "term_start": "1962-10",
    "term_end": "1975-02-28",
    "api_url": "https://the-shashi.com/api/jp-ibm/ceo/inagaki-hayao.json",
    "list_api_url": "https://the-shashi.com/api/jp-ibm/ceo.json",
    "predecessor": {
      "slug": "suzuki-shinji",
      "name": "鈴木信治",
      "api_url": "https://the-shashi.com/api/jp-ibm/ceo/suzuki-shinji.json"
    },
    "successor": {
      "slug": "shiina-takeo",
      "name": "椎名武雄",
      "api_url": "https://the-shashi.com/api/jp-ibm/ceo/shiina-takeo.json"
    }
  }
}