{
  "spec_version": "5",
  "endpoint": "ceo-person",
  "stock_code": "3436",
  "company_name": "SUMCO",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/3436/executives/ceo/furuya-hisashi/",
  "api_url": "/api/3436/ceo/furuya-hisashi.json",
  "updated": "2026-10-20",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/3436/executives/ceo/furuya-hisashi/",
  "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": "furuya-hisashi",
    "name": "降屋久",
    "kana": "ふるや　ひさし",
    "surname": "降屋",
    "given_name": "久",
    "hometown": "東京都",
    "education": "東京都立大学大学院 (1983)",
    "education_source": "https://ja.wikipedia.org/wiki/%E9%99%8D%E5%B1%8B%E4%B9%85",
    "prev_role": "取締役副社長",
    "career": [
      {
        "company": "三菱マテリアル",
        "from": "1983-04",
        "to": "2005-04",
        "roles": [
          {
            "date": "1983-04",
            "role": "三菱金属 入社"
          }
        ]
      },
      {
        "company": "SUMCO",
        "from": "2005-04",
        "to": null,
        "roles": [
          {
            "date": "2005-04",
            "role": "生産・技術本部結晶技術部長",
            "dept": "生産・技術本部結晶技術部長"
          },
          {
            "date": "2007-04",
            "role": "生産・技術本部米沢事業所長",
            "dept": "生産・技術本部米沢事業所長"
          },
          {
            "date": "2008-04",
            "role": "執行役員、生産・技術本部米沢事業所長",
            "officer": "執行役員",
            "dept": "生産・技術本部米沢事業所長"
          },
          {
            "date": "2011-04",
            "role": "常務執行役員、ソーラー事業部長",
            "officer": "常務執行役員",
            "dept": "ソーラー事業部長"
          },
          {
            "date": "2012-10",
            "role": "常務執行役員、技術本部長",
            "officer": "常務執行役員",
            "dept": "技術本部長"
          },
          {
            "date": "2013-04",
            "role": "取締役・常務執行役員、技術本部長",
            "board": "取締役",
            "officer": "常務執行役員",
            "dept": "技術本部長"
          },
          {
            "date": "2014-03",
            "role": "取締役・専務執行役員、技術本部長",
            "board": "取締役",
            "officer": "専務執行役員",
            "dept": "技術本部長"
          },
          {
            "date": "2017-03",
            "role": "取締役副社長、技術本部長",
            "board": "取締役",
            "title": "副社長",
            "dept": "技術本部長"
          },
          {
            "date": "2018-03",
            "role": "代表取締役社長兼COO",
            "board": "代表取締役",
            "title": "社長",
            "officer": "COO",
            "is_ceo_appointed": true
          },
          {
            "date": "2020-01",
            "role": "代表取締役社長兼COO、技術本部長",
            "board": "代表取締役",
            "title": "社長",
            "officer": "COO",
            "dept": "技術本部長"
          },
          {
            "date": "2022-03",
            "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"
          }
        ]
      }
    ],
    "references": [
      {
        "source": "SUMCO 有価証券報告書【役員の状況】",
        "for": [
          "career"
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/3436/executives/ceo/furuya-hisashi/",
    "term_start": "2018-03",
    "term_end": "2022-03",
    "api_url": "https://the-shashi.com/api/3436/ceo/furuya-hisashi.json",
    "list_api_url": "https://the-shashi.com/api/3436/ceo.json",
    "predecessor": {
      "slug": "takii-michiharu",
      "name": "瀧井道治",
      "api_url": "https://the-shashi.com/api/3436/ceo/takii-michiharu.json"
    },
    "successor": {
      "slug": "awa-toshihiro",
      "name": "阿波俊弘",
      "api_url": "https://the-shashi.com/api/3436/ceo/awa-toshihiro.json"
    }
  }
}