{
  "spec_version": "5",
  "endpoint": "ceo-person",
  "stock_code": "1861",
  "company_name": "熊谷組",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/1861/executives/ceo/kumagai-tasaburo/",
  "api_url": "/api/1861/ceo/kumagai-tasaburo.json",
  "updated": "2026-10-29",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/1861/executives/ceo/kumagai-tasaburo/",
  "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": "kumagai-tasaburo",
    "name": "熊谷太三郎",
    "kana": "くまがい　たさぶろう",
    "surname": "熊谷",
    "given_name": "太三郎",
    "birthdate": "1906",
    "origin": "創業家。創業者熊谷三太郎の二男で、1938年1月の株式会社熊谷組の設立で取締役副社長となり、1940年1月に父の後を継いで取締役社長に就任した",
    "origin_type": "創業家",
    "hometown": null,
    "education": null,
    "prev_role": "取締役副社長",
    "prev_company": "熊谷組",
    "career": [
      {
        "company": "熊谷組",
        "from": "1938-01",
        "to": null,
        "roles": [
          {
            "date": "1938-01",
            "role": "株式会社熊谷組 設立・取締役副社長",
            "title": "副社長",
            "event": "設立"
          },
          {
            "date": "1940-01",
            "role": "取締役社長",
            "title": "社長",
            "event": "就任",
            "is_ceo_appointed": true
          },
          {
            "date": "1967-11",
            "role": "社長退任（通商産業政務次官就任に伴い代表取締役社長を辞任・取締役）",
            "event": "退任",
            "is_ceo_retired": true,
            "retirement_basis": "press"
          },
          {
            "date": "1968-11",
            "role": "取締役会長",
            "title": "会長",
            "event": "就任"
          }
        ]
      }
    ],
    "references": [
      {
        "source": "熊谷組 公式サイト「沿革」（2026年10月取得）1940年1月「社長熊谷太三郎、会長熊谷三太郎それぞれ就任」",
        "for": [
          "career"
        ],
        "url": "https://www.kumagaigumi.co.jp/company/history/"
      },
      {
        "source": "株式会社熊谷組四十年史（熊谷組, 1978）本史第一章（取締役社長熊谷三太郎・取締役副社長熊谷太三郎／昭和十五年一月、熊谷三太郎が退いて取締役会長となり熊谷太三郎副社長が取締役社長）",
        "for": [
          "career",
          "origin"
        ]
      },
      {
        "source": "株式会社熊谷組四十年史（熊谷組, 1978）昭和四十二年 熊谷社長の通産政務次官就任／昭和四十三年十一月三十日の役員人事（熊谷太三郎前社長が取締役会長に就任）",
        "for": [
          "career"
        ]
      },
      {
        "source": "国立国会図書館 典拠（著者標目「熊谷, 太三郎, 1906-1992」読み「クマガイ, タサブロウ」）",
        "for": [
          "kana",
          "birthdate"
        ],
        "url": "https://ndlsearch.ndl.go.jp/api/opensearch?creator=熊谷太三郎"
      }
    ],
    "sections": {
      "tenure_frames": [
        {
          "frame": "origin",
          "text": null
        },
        {
          "frame": "selection",
          "text": null
        },
        {
          "frame": "initiatives",
          "text": null
        },
        {
          "frame": "results",
          "text": null
        }
      ]
    },
    "html_url": "https://the-shashi.com/tse/1861/executives/ceo/kumagai-tasaburo/",
    "term_start": "1940-01",
    "term_end": "1967-11",
    "api_url": "https://the-shashi.com/api/1861/ceo/kumagai-tasaburo.json",
    "list_api_url": "https://the-shashi.com/api/1861/ceo.json",
    "predecessor": {
      "slug": "kumagai-santaro",
      "name": "熊谷三太郎",
      "api_url": "https://the-shashi.com/api/1861/ceo/kumagai-santaro.json"
    },
    "successor": {
      "slug": "makita-jinichi",
      "name": "牧田甚一",
      "api_url": "https://the-shashi.com/api/1861/ceo/makita-jinichi.json"
    }
  }
}