{
  "spec_version": "6",
  "endpoint": "ceo-person",
  "stock_code": "8304",
  "company_name": "あおぞら銀行",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/8304/executives/ceo/matsuoka-seiji/",
  "api_url": "/api/8304/ceo/matsuoka-seiji.json",
  "updated": "2026-10-29",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/8304/executives/ceo/matsuoka-seiji/",
  "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": "matsuoka-seiji",
    "name": "松岡誠司",
    "kana": "まつおか　せいじ",
    "surname": "松岡",
    "given_name": "誠司",
    "origin": "生え抜き（1957年入行）。設立初年度の入行組から、同行初の生え抜き頭取へ",
    "origin_type": "生え抜き",
    "milestone": "同行初の生え抜き頭取",
    "hometown": "神奈川県",
    "education": "東京大学経済学部 (1956)／東京大学農学部 (1953)",
    "education_source": "https://ja.wikipedia.org/wiki/%E6%9D%BE%E5%B2%A1%E8%AA%A0%E5%8F%B8_(%E9%8A%80%E8%A1%8C%E5%AE%B6)",
    "prev_role": "副頭取",
    "career": [
      {
        "company": "日本不動産銀行",
        "from": "1957-04",
        "to": null,
        "roles": [
          {
            "date": "1957-04",
            "role": "入行",
            "event": "入行"
          },
          {
            "date": "1973-11",
            "role": "取締役",
            "board": "取締役"
          },
          {
            "date": "1975-12",
            "role": "常務",
            "title": "常務"
          },
          {
            "date": "1982-11",
            "role": "専務",
            "title": "専務"
          },
          {
            "date": "1984-06",
            "role": "副頭取",
            "title": "副頭取"
          },
          {
            "date": "1987-12",
            "role": "頭取",
            "title": "頭取",
            "is_ceo_appointed": true
          },
          {
            "date": "1993-06",
            "role": "会長",
            "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"
          },
          {
            "date": "1999-06",
            "role": "相談役",
            "title": "相談役"
          }
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/8304/executives/ceo/matsuoka-seiji/",
    "term_start": "1987-12",
    "term_end": "1993-06",
    "api_url": "https://the-shashi.com/api/8304/ceo/matsuoka-seiji.json",
    "list_api_url": "https://the-shashi.com/api/8304/ceo.json",
    "predecessor": {
      "slug": "egawa-shiro",
      "name": "頴川史郎",
      "api_url": "https://the-shashi.com/api/8304/ceo/egawa-shiro.json"
    },
    "successor": {
      "slug": "kubota-hiroshi",
      "name": "窪田弘",
      "api_url": "https://the-shashi.com/api/8304/ceo/kubota-hiroshi.json"
    }
  }
}