{
  "spec_version": "6",
  "endpoint": "ceo-person",
  "stock_code": "4061",
  "company_name": "デンカ",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/4061/executives/ceo/hiruma-toshio/",
  "api_url": "/api/4061/ceo/hiruma-toshio.json",
  "updated": "2026-10-29",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/4061/executives/ceo/hiruma-toshio/",
  "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": "hiruma-toshio",
    "name": "晝間敏男",
    "kana": "ひるま　としお",
    "surname": "晝間",
    "given_name": "敏男",
    "origin": "生え抜き（1961年入社）。化学品事業本部副本部長・製品事業本部長を経て社長へ",
    "origin_type": "生え抜き",
    "hometown": null,
    "education": "早稲田大学第一商学部 (1961)",
    "prev_role": "常務取締役",
    "career": [
      {
        "company": "早稲田大学",
        "from": "1961-03",
        "to": "1961-03",
        "roles": [
          {
            "date": "1961-03",
            "role": "第一商学部卒"
          }
        ]
      },
      {
        "company": "電気化学工業",
        "from": "1961-04",
        "to": null,
        "roles": [
          {
            "date": "1961-04",
            "role": "入社",
            "event": "入社"
          },
          {
            "date": "1994-03",
            "role": "化学品事業本部化学品企画統括室長",
            "dept": "化学品事業本部化学品企画統括室長"
          },
          {
            "date": "1994-06",
            "role": "取締役就任",
            "board": "取締役",
            "event": "就任"
          },
          {
            "date": "1995-01",
            "role": "化学品事業本部副本部長",
            "dept": "化学品事業本部副本部長"
          },
          {
            "date": "1997-01",
            "role": "常務取締役就任（製品事業本部長）"
          },
          {
            "date": "2000-06",
            "role": "代表取締役社長就任",
            "board": "代表取締役",
            "title": "社長",
            "event": "就任",
            "is_ceo_appointed": true
          },
          {
            "date": "2006-06",
            "role": "代表取締役会長就任",
            "board": "代表取締役",
            "title": "会長",
            "event": "就任"
          },
          {
            "date": "2006-06",
            "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"
          }
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/4061/executives/ceo/hiruma-toshio/",
    "term_start": "2000-06",
    "term_end": "2006-06",
    "api_url": "https://the-shashi.com/api/4061/ceo/hiruma-toshio.json",
    "list_api_url": "https://the-shashi.com/api/4061/ceo.json",
    "predecessor": {
      "slug": "shinohara-akira",
      "name": "篠原晃",
      "api_url": "https://the-shashi.com/api/4061/ceo/shinohara-akira.json"
    },
    "successor": {
      "slug": "kawabata-seiki",
      "name": "川端世輝",
      "api_url": "https://the-shashi.com/api/4061/ceo/kawabata-seiki.json"
    }
  }
}