{
  "spec_version": "6",
  "endpoint": "ceo-person",
  "stock_code": "3099",
  "company_name": "三越伊勢丹ホールディングス",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/3099/executives/ceo/onishi-hiroshi/",
  "api_url": "/api/3099/ceo/onishi-hiroshi.json",
  "updated": "2026-11-12",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/3099/executives/ceo/onishi-hiroshi/",
  "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": "onishi-hiroshi",
    "name": "大西洋",
    "kana": "おおにし　ひろし",
    "surname": "大西",
    "given_name": "洋",
    "origin": "生え抜き（1979年伊勢丹入社）。旧伊勢丹出身。紳士服の販売員からＭＤ統括部長を歩み、2009年6月に伊勢丹社長、2011年4月の事業会社合併で三越伊勢丹社長を務めたのち持株会社社長へ",
    "origin_type": "生え抜き",
    "hometown": "東京都",
    "prev_role": "株式会社三越伊勢丹 代表取締役社長執行役員兼営業本部長",
    "career": [
      {
        "company": "伊勢丹",
        "from": "1979-04",
        "to": "2011-04",
        "roles": [
          {
            "date": "1979-04",
            "role": "入社",
            "event": "入社"
          },
          {
            "date": "2005-06",
            "role": "執行役員",
            "officer": "執行役員"
          },
          {
            "date": "2008-03",
            "role": "常務執行役員",
            "officer": "常務執行役員"
          },
          {
            "date": "2009-06",
            "role": "代表取締役社長執行役員",
            "board": "代表取締役",
            "officer": "社長執行役員"
          }
        ]
      },
      {
        "company": "三越伊勢丹",
        "from": "2011-04",
        "to": null,
        "roles": [
          {
            "date": "2011-04",
            "role": "代表取締役社長執行役員",
            "board": "代表取締役",
            "officer": "社長執行役員"
          },
          {
            "date": "2012-02",
            "role": "三越伊勢丹HD代表取締役社長執行役員",
            "is_ceo_appointed": true
          },
          {
            "date": "2017-03",
            "role": "社長退任",
            "title": "社長",
            "event": "退任",
            "is_ceo_retired": true,
            "retirement_basis": "timeline"
          }
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/3099/executives/ceo/onishi-hiroshi/",
    "term_start": "2012-02",
    "term_end": "2017-04",
    "api_url": "https://the-shashi.com/api/3099/ceo/onishi-hiroshi.json",
    "list_api_url": "https://the-shashi.com/api/3099/ceo.json",
    "predecessor": {
      "slug": "muto-shinichi",
      "name": "武藤信一",
      "api_url": "https://the-shashi.com/api/3099/ceo/muto-shinichi.json"
    },
    "successor": {
      "slug": "sugie-toshihiko",
      "name": "杉江俊彦",
      "api_url": "https://the-shashi.com/api/3099/ceo/sugie-toshihiko.json"
    }
  }
}