{
  "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/takii-michiharu/",
  "api_url": "/api/3436/ceo/takii-michiharu.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/takii-michiharu/",
  "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": "takii-michiharu",
    "name": "瀧井道治",
    "kana": "たきい　みちはる",
    "surname": "瀧井",
    "given_name": "道治",
    "hometown": "和歌山県",
    "education": "東京大学法学部 (1974)",
    "education_source": "https://ja.wikipedia.org/wiki/%E7%80%A7%E4%BA%95%E9%81%93%E6%B2%BB",
    "prev_role": "代表取締役副社長",
    "career": [
      {
        "company": "住友金属工業",
        "from": "1974-04",
        "to": "2012-04",
        "roles": [
          {
            "date": "1974-04",
            "role": "入社",
            "event": "入社"
          },
          {
            "date": "2005-04",
            "role": "常務執行役員、和歌山製鉄所副所長",
            "officer": "常務執行役員",
            "dept": "和歌山製鉄所副所長"
          },
          {
            "date": "2005-10",
            "role": "常務執行役員、経営企画部長",
            "officer": "常務執行役員",
            "dept": "経営企画部長"
          },
          {
            "date": "2009-04",
            "role": "専務執行役員",
            "officer": "専務執行役員"
          },
          {
            "date": "2009-06",
            "role": "取締役、専務執行役員",
            "board": "取締役",
            "officer": "専務執行役員"
          }
        ]
      },
      {
        "company": "SUMCO",
        "from": "2012-04",
        "to": null,
        "roles": [
          {
            "date": "2012-04",
            "role": "代表取締役副社長（社長補佐）",
            "board": "代表取締役",
            "title": "副社長",
            "dept": "社長補佐"
          },
          {
            "date": "2016-03",
            "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": "2018-03",
            "role": "代表取締役副会長",
            "board": "代表取締役",
            "title": "副会長",
            "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/takii-michiharu/",
    "term_start": "2016-03",
    "term_end": "2018-03",
    "api_url": "https://the-shashi.com/api/3436/ceo/takii-michiharu.json",
    "list_api_url": "https://the-shashi.com/api/3436/ceo.json",
    "predecessor": {
      "slug": "hashimoto-mayuki",
      "name": "橋本眞幸",
      "api_url": "https://the-shashi.com/api/3436/ceo/hashimoto-mayuki.json"
    },
    "successor": {
      "slug": "furuya-hisashi",
      "name": "降屋久",
      "api_url": "https://the-shashi.com/api/3436/ceo/furuya-hisashi.json"
    }
  }
}