{
  "spec_version": "4",
  "endpoint": "ceo",
  "stock_code": "7976",
  "company_name": "三菱鉛筆",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/7976/ceo/",
  "api_url": "/api/7976/ceo.json",
  "updated": "2026-09-20",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/7976/ceo/",
  "source": {
    "ceo": {
      "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"
    }
  },
  "count": 2,
  "ceo": [
    {
      "slug": "suhara-eiichiro",
      "name": "数原英一郎",
      "kana": "すはら　えいいちろう",
      "hometown": null,
      "education": null,
      "prev_role": null,
      "origin": "社長・数原洋二氏の長男。1974年に三菱鉛筆へ入社し、取締役副社長を経て1987年に父の後を継いで社長に就任した",
      "origin_type": "実質創業家",
      "career": [
        {
          "company": "三菱鉛筆",
          "from": "1974-08",
          "to": null,
          "roles": [
            {
              "date": "1974-08",
              "role": "入社"
            },
            {
              "date": "1980-03",
              "role": "取締役"
            },
            {
              "date": "1982-03",
              "role": "常務取締役"
            },
            {
              "date": "1985-03",
              "role": "取締役副社長"
            },
            {
              "date": "1987-03",
              "role": "代表取締役社長",
              "is_ceo_appointed": true
            },
            {
              "date": "2015-06",
              "role": "代表取締役社長 エーザイ株式会社社外取締役"
            },
            {
              "date": "2019-03",
              "role": "代表取締役会長兼社長"
            },
            {
              "date": "2020-03",
              "role": "代表取締役会長"
            },
            {
              "date": "2020-03",
              "role": "社長退任（次期社長登用による推定）",
              "is_ceo_retired": true,
              "retirement_basis": "next_ceo"
            }
          ]
        },
        {
          "company": "富士急行株式会社",
          "from": "2020-06",
          "to": null,
          "roles": [
            {
              "date": "2020-06",
              "role": "社外監査役"
            }
          ]
        },
        {
          "company": "カシオ計算機株式会社",
          "from": "2023-06",
          "to": null,
          "roles": [
            {
              "date": "2023-06",
              "role": "社外取締役"
            }
          ]
        }
      ],
      "sections": {
        "tenure_summary": null,
        "management_policy": null,
        "initiatives": null
      },
      "html_url": "https://the-shashi.com/tse/7976/executives/ceo/suhara-eiichiro/",
      "term_start": "1987-03",
      "term_end": "2020-03"
    },
    {
      "slug": "suhara-shigehiko",
      "name": "数原滋彦",
      "kana": "すはら　しげひこ",
      "hometown": null,
      "education": null,
      "prev_role": null,
      "origin": "社長・数原英一郎氏の長男。2005年に三菱鉛筆へ入社し、群馬工場長・経営企画担当などを経て2020年に父の後を継いだ",
      "origin_type": "実質創業家",
      "career": [
        {
          "company": "三菱鉛筆",
          "from": "2005-04",
          "to": null,
          "roles": [
            {
              "date": "2005-04",
              "role": "入社"
            },
            {
              "date": "2010-04",
              "role": "群馬工場長"
            },
            {
              "date": "2012-04",
              "role": "営業企画部長"
            },
            {
              "date": "2013-03",
              "role": "取締役 経営企画担当"
            },
            {
              "date": "2015-11",
              "role": "取締役 経営企画担当兼海外営業企画部長"
            },
            {
              "date": "2016-03",
              "role": "取締役 商品開発担当兼新規事業担当"
            },
            {
              "date": "2017-03",
              "role": "常務取締役 筆記具事業担当兼新規事業担当兼商品開発担当兼全社品質担当"
            },
            {
              "date": "2018-03",
              "role": "取締役副社長"
            },
            {
              "date": "2019-03",
              "role": "代表取締役副社長"
            },
            {
              "date": "2020-03",
              "role": "代表取締役社長",
              "is_ceo_appointed": true
            },
            {
              "date": "2022-03",
              "role": "新規事業担当兼内部監査担当"
            },
            {
              "date": "2023-11",
              "role": "生産担当兼全社生産技術担当"
            },
            {
              "date": "2025-10",
              "role": "経営企画担当"
            }
          ]
        }
      ],
      "sections": {
        "tenure_summary": null,
        "management_policy": null,
        "initiatives": null
      },
      "html_url": "https://the-shashi.com/tse/7976/executives/ceo/suhara-shigehiko/",
      "term_start": "2020-03",
      "term_end": null
    }
  ]
}