{
  "spec_version": "5",
  "endpoint": "ceo-person",
  "stock_code": "4082",
  "company_name": "第一稀元素化学工業",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/4082/executives/ceo/kokubu-hiroshi/",
  "api_url": "/api/4082/ceo/kokubu-hiroshi.json",
  "updated": "2026-10-27",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/4082/executives/ceo/kokubu-hiroshi/",
  "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": "kokubu-hiroshi",
    "name": "國部洋",
    "kana": "こくぶ　ひろし",
    "hometown": null,
    "education": null,
    "prev_role": null,
    "career": [
      {
        "company": "㈱三和銀行(現㈱三菱ＵＦＪ銀行)",
        "from": "1995-04",
        "to": null,
        "roles": [
          {
            "date": "1995-04",
            "role": "入行"
          }
        ]
      },
      {
        "company": "当社",
        "from": "2004-10",
        "to": null,
        "roles": [
          {
            "date": "2004-10",
            "role": "入社"
          }
        ]
      },
      {
        "company": "",
        "from": "2009-06",
        "to": null,
        "roles": [
          {
            "date": "2009-06",
            "role": "営業部東京営業所長"
          },
          {
            "date": "2011-03",
            "role": "資材部長"
          },
          {
            "date": "2013-06",
            "role": "取締役資材部長"
          },
          {
            "date": "2014-07",
            "role": "山東広垠廸凱凱新材料有限公司 副董事長"
          },
          {
            "date": "2014-07",
            "role": "山東広垠廸凱凱環保科技有限公司 副董事長"
          }
        ]
      },
      {
        "company": "㈱アイ・ディ・ユー",
        "from": "2016-04",
        "to": null,
        "roles": [
          {
            "date": "2016-04",
            "role": "取締役"
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      },
      {
        "company": "",
        "from": "2016-04",
        "to": null,
        "roles": [
          {
            "date": "2016-04",
            "role": "取締役営業部長兼資材部担当"
          },
          {
            "date": "2017-12",
            "role": "迪凱凱(上海)材料貿易有限公司 董事長"
          },
          {
            "date": "2019-04",
            "role": "取締役事業本部長"
          },
          {
            "date": "2020-04",
            "role": "常務取締役事業本部長"
          },
          {
            "date": "2020-06",
            "role": "取締役常務執行役員事業本部長"
          },
          {
            "date": "2022-04",
            "role": "取締役常務執行役員"
          },
          {
            "date": "2022-06",
            "role": "代表取締役社長執行役員（現任）",
            "is_ceo_appointed": true
          }
        ]
      }
    ],
    "sections": {
      "tenure_summary": null,
      "management_policy": null,
      "initiatives": null,
      "evaluation": null,
      "notable": null
    },
    "html_url": "https://the-shashi.com/tse/4082/executives/ceo/kokubu-hiroshi/",
    "term_start": "2022-06",
    "term_end": null,
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    "list_api_url": "https://the-shashi.com/api/4082/ceo.json",
    "predecessor": {
      "slug": "井上剛",
      "name": "井上剛",
      "api_url": "https://the-shashi.com/api/4082/ceo/井上剛.json"
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    "successor": null
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}