{
  "spec_version": "5",
  "endpoint": "director",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/outside-directors/sumida-sayaka/",
  "api_url": "/api/directors/sumida-sayaka.json",
  "updated": "2026-10-13",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/outside-directors/sumida-sayaka/",
  "source": {
    "person": {
      "primary": [
        "コーポレート・ガバナンス報告書（社外取締役の属性・独立役員）",
        "有価証券報告書（役員の状況・略歴）",
        "招集通知・臨時報告書（選任議案の賛成比率）"
      ],
      "extraction": "各社の最新の CG 報告書と有報の役員の表から機械抽出し、漢字の氏名＋生年月で会社をまたいで名寄せ",
      "caveat": "兼務先は最新の断面（有報の役員の表が最新から 400 日以内）。経歴の行ごとの出典は refs が sources の id を指す"
    }
  },
  "person": {
    "slug": "sumida-sayaka",
    "name": "住田清芽",
    "last_name": null,
    "first_name": null,
    "romaji": "Sumida Sayaka",
    "last_name_romaji": null,
    "first_name_romaji": null,
    "birth": "1961-01",
    "directorships": [
      {
        "stock_code": "6857",
        "company_name": "アドバンテスト",
        "role": "取締役（監査等委員）",
        "start_at": "2020-03",
        "end_at": null,
        "independent": null,
        "attribute": "公認会計士",
        "votes": [
          {
            "month": "2024/6",
            "ratio": 98.97
          },
          {
            "month": "2026/7",
            "ratio": 99.31
          }
        ],
        "company_html_url": "https://the-shashi.com/tse/6857/"
      },
      {
        "stock_code": "8697",
        "company_name": "日本取引所グループ",
        "role": "取締役",
        "start_at": "2025-03",
        "end_at": null,
        "independent": null,
        "attribute": "公認会計士",
        "votes": [
          {
            "month": "2024/6",
            "ratio": 98.15
          },
          {
            "month": "2025/6",
            "ratio": 98.97
          },
          {
            "month": "2026/6",
            "ratio": 99.45
          }
        ],
        "company_html_url": "https://the-shashi.com/tse/8697/"
      }
    ],
    "career": [
      {
        "ym": "1984-10",
        "kind": "民間",
        "org": "監査法人朝日会計社",
        "stock_code": null,
        "role": "入社",
        "current": false,
        "row_text": "監査法人朝日会計社 (現有限責任あずさ監査法人) 入社",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "1988-05",
        "kind": "他",
        "org": "資格",
        "stock_code": null,
        "role": "公認会計士 登録",
        "current": false,
        "row_text": "公認会計士登録",
        "refs": [
          "r1"
        ]
      },
      {
        "ym": "2006-05",
        "kind": "民間",
        "org": "あずさ監査法人",
        "stock_code": null,
        "role": "パートナー",
        "current": false,
        "row_text": "あずさ監査法人 (現同上) パートナー",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2007-08",
        "kind": "他",
        "org": "日本公認会計士協会",
        "stock_code": null,
        "role": "監査基準委員会委員長",
        "current": false,
        "row_text": "日本公認会計士協会監査基準委員会委員長",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2010-07",
        "kind": "他",
        "org": "日本公認会計士協会",
        "stock_code": null,
        "role": "常務理事 (品質管理基準および監査基準担当)",
        "current": false,
        "row_text": "同協会常務理事 (品質管理基準および監査基準担当)",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2015-01",
        "kind": "他",
        "org": "国際会計士連盟 (IFAC)",
        "stock_code": null,
        "role": "国際監査・保証基準審議会 (IAASB) ボードメンバー",
        "current": false,
        "row_text": "国際会計士連盟 (IFAC) 国際監査・保証基準審議会 (IAASB) ボードメンバー 国際会計士連盟（IFAC）国際監査・保証基準審議会（IAASB）ボードメンバー",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2017-02",
        "kind": "官公庁",
        "org": "金融庁企業会計審議会",
        "stock_code": null,
        "role": "委員",
        "current": false,
        "row_text": "金融庁企業会計審議会委員",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2020-06",
        "kind": "民間",
        "org": "古河電工",
        "stock_code": "5801",
        "role": "社外監査役",
        "current": true,
        "row_text": "古河電気工業株式会社社外監査役 (現任)日清オイリオグループ株式会社社外監査役アドバンテスト取締役 監査等委員 (現任)",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2020-06",
        "kind": "民間",
        "org": "日清オイリオグループ",
        "stock_code": "2602",
        "role": "社外監査役",
        "current": false,
        "row_text": "古河電気工業株式会社社外監査役 (現任)日清オイリオグループ株式会社社外監査役アドバンテスト取締役 監査等委員 (現任)",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2020-06",
        "kind": "民間",
        "org": "アドバンテスト",
        "stock_code": "6857",
        "role": "取締役 監査等委員",
        "current": true,
        "row_text": "古河電気工業株式会社社外監査役 (現任)日清オイリオグループ株式会社社外監査役アドバンテスト取締役 監査等委員 (現任)",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2024-06",
        "kind": "民間",
        "org": "日本取引所グループ",
        "stock_code": "8697",
        "role": "社外取締役(監査委員)",
        "current": true,
        "row_text": "株式会社日本取引所グループ社外取締役(監査委員) (現任)",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2025-06",
        "kind": "民間",
        "org": "古河電工",
        "stock_code": "5801",
        "role": "社外取締役（監査等委員）",
        "current": true,
        "row_text": "古河電気工業株式会社社外取締役（監査等委員）（現任）",
        "refs": [
          "r2"
        ]
      }
    ],
    "sources": [
      {
        "id": "r1",
        "type": "有価証券報告書",
        "title": "有価証券報告書",
        "by": "アドバンテスト",
        "date": "2026-07-31",
        "url": null,
        "note": "役員の状況"
      },
      {
        "id": "r2",
        "type": "有価証券報告書",
        "title": "有価証券報告書",
        "by": "日本取引所グループ",
        "date": "2026-06-19",
        "url": null,
        "note": "役員の状況"
      }
    ],
    "api_url": "https://the-shashi.com/api/directors/sumida-sayaka.json",
    "list_api_url": "https://the-shashi.com/api/directors.json",
    "html_url": "https://the-shashi.com/outside-directors/sumida-sayaka/"
  }
}
