{
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  "endpoint": "executives",
  "stock_code": "5231",
  "company_name": "日本セメント",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/5231/executives/",
  "api_url": "/api/5231/executives.json",
  "updated": "2026-08-23",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/5231/executives/",
  "source": {
    "primary": [
      "有価証券報告書（役員の状況）"
    ],
    "extraction": "EDINET の XBRL から機械抽出。遡及分は雑誌記事・社史等で補完"
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      "name": "徳根吉郎",
      "as_of": "1964-01",
      "birthdate": "1896-01-01",
      "role": "取締役会長",
      "first_career": null,
      "shares_held": null,
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      "name": "井上英熙",
      "as_of": "1964-01",
      "birthdate": "1899-01-01",
      "role": "代表取締役社長",
      "first_career": null,
      "shares_held": null,
      "romaji": null,
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      "shares_held": null,
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      "name": "奥野智行",
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      "birthdate": "1901-01-01",
      "role": "専務取締役",
      "first_career": null,
      "shares_held": null,
      "romaji": null,
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      "linked_codes": null
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    {
      "name": "江上忠次",
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      "shares_held": null,
      "romaji": null,
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    {
      "name": "武安千春",
      "as_of": "1964-01",
      "birthdate": "1902-01-01",
      "role": "常務取締役",
      "first_career": null,
      "shares_held": null,
      "romaji": null,
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      "name": "細井潤三",
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