{
  "spec_version": "6",
  "endpoint": "ceo-person",
  "stock_code": "9020",
  "company_name": "東日本旅客鉄道",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/9020/executives/ceo/sumita-shoji/",
  "api_url": "/api/9020/ceo/sumita-shoji.json",
  "updated": "2026-11-12",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/9020/executives/ceo/sumita-shoji/",
  "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": "sumita-shoji",
    "name": "住田正二",
    "kana": "すみた　しょうじ",
    "surname": "住田",
    "given_name": "正二",
    "origin": "外部出身（1947年運輸省入省、1978年運輸事務次官）。国鉄分割民営化を所管官庁の側から見た運輸省OBで、1987年4月の会社発足と同時に初代社長へ。国鉄入社組が承継した歴代6社長が生え抜きであるのに対し、初代のみが官庁からの外部登用である",
    "origin_type": "外部出身",
    "hometown": "兵庫県",
    "prev_role": "運輸事務次官",
    "career": [
      {
        "company": "運輸省",
        "from": "1947-11",
        "to": null,
        "roles": [
          {
            "date": "1947-11",
            "role": "入省",
            "event": "入省"
          },
          {
            "date": "1978-06",
            "role": "運輸事務次官"
          }
        ]
      },
      {
        "company": "全日本空輸",
        "from": "1981",
        "to": "1982",
        "roles": [
          {
            "date": "1981",
            "role": "入社（社長含み、1年で退社）"
          }
        ]
      },
      {
        "company": "東日本旅客鉄道",
        "from": "1987-04",
        "to": null,
        "roles": [
          {
            "date": "1987-04",
            "role": "取締役社長（国鉄分割民営化による会社発足と同時）",
            "is_ceo_appointed": true
          },
          {
            "date": "1993-06",
            "role": "取締役会長",
            "board": "取締役",
            "title": "会長"
          },
          {
            "date": "1993-06",
            "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"
          }
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/9020/executives/ceo/sumita-shoji/",
    "term_start": "1987-04",
    "term_end": "1993-06",
    "api_url": "https://the-shashi.com/api/9020/ceo/sumita-shoji.json",
    "list_api_url": "https://the-shashi.com/api/9020/ceo.json",
    "predecessor": null,
    "successor": {
      "slug": "matsuda-masatake",
      "name": "松田昌士",
      "api_url": "https://the-shashi.com/api/9020/ceo/matsuda-masatake.json"
    }
  }
}