{
  "spec_version": "5",
  "endpoint": "ceo-person",
  "stock_code": "maruha",
  "company_name": "マルハ",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/maruha/executives/ceo/amatatsu-yushiro/",
  "api_url": "/api/maruha/ceo/amatatsu-yushiro.json",
  "updated": "2026-10-27",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/maruha/executives/ceo/amatatsu-yushiro/",
  "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": "amatatsu-yushiro",
    "name": "天辰祐之郎",
    "kana": "あまたつ　ゆうしろう",
    "surname": "天辰",
    "given_name": "祐之郎",
    "birthdate": "1920-11-29",
    "hometown": "鹿児島県",
    "education": "農林省水産講習所遠洋漁業科／現・東京海洋大学 (1944)",
    "prev_role": "会長",
    "origin": "生え抜き（1945年入社）。18年間船に乗り、北方トロール事業部長など漁撈の畑を歩いた。前社長の療養中は事実上の社長代行を務めた",
    "origin_type": "生え抜き",
    "milestone": "中部家以外で初",
    "career": [
      {
        "company": "大洋漁業",
        "from": "1945",
        "to": null,
        "roles": [
          {
            "date": "1945",
            "role": "入社（西大洋漁業統制）"
          },
          {
            "date": "1970",
            "role": "第二生産事業本部北方トロール事業部長"
          },
          {
            "date": "1972",
            "role": "取締役"
          },
          {
            "date": "1973",
            "role": "常務"
          },
          {
            "date": "1978",
            "role": "専務"
          },
          {
            "date": "1981",
            "role": "副社長"
          },
          {
            "date": "1986",
            "role": "会長"
          },
          {
            "date": "1987",
            "role": "社長",
            "is_ceo_appointed": true
          }
        ]
      }
    ],
    "references": [
      {
        "source": "日経ビジネス 1987年3月16日号「新社長登場 天辰祐之郎氏（大洋漁業）」",
        "for": [
          "career",
          "education",
          "hometown",
          "birthdate",
          "origin"
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/maruha/executives/ceo/amatatsu-yushiro/",
    "term_start": "1987",
    "term_end": "1989-06",
    "api_url": "https://the-shashi.com/api/maruha/ceo/amatatsu-yushiro.json",
    "list_api_url": "https://the-shashi.com/api/maruha/ceo.json",
    "predecessor": {
      "slug": "nakabe-tojiro",
      "name": "中部藤次郎",
      "api_url": "https://the-shashi.com/api/maruha/ceo/nakabe-tojiro.json"
    },
    "successor": {
      "slug": "nakabe-keijiro",
      "name": "中部慶次郎",
      "api_url": "https://the-shashi.com/api/maruha/ceo/nakabe-keijiro.json"
    }
  }
}