{
  "spec_version": "5",
  "endpoint": "director",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/outside-directors/sasamoto-yu/",
  "api_url": "/api/directors/sasamoto-yu.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/sasamoto-yu/",
  "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": "sasamoto-yu",
    "name": "笹本裕",
    "last_name": "笹本",
    "first_name": "裕",
    "romaji": "Sasamoto Yu",
    "last_name_romaji": "Sasamoto",
    "first_name_romaji": "Yu",
    "birth": "1964-09",
    "directorships": [
      {
        "stock_code": "8136",
        "company_name": "サンリオ",
        "role": "取締役",
        "start_at": "2021-03",
        "end_at": null,
        "independent": null,
        "attribute": "他の会社の出身者",
        "votes": [
          {
            "month": "2024/6",
            "ratio": 98.23
          },
          {
            "month": "2025/6",
            "ratio": 99.29
          },
          {
            "month": "2026/6",
            "ratio": 96.25
          }
        ],
        "company_html_url": "https://the-shashi.com/tse/8136/"
      },
      {
        "stock_code": "9468",
        "company_name": "KADOKAWA",
        "role": "取締役",
        "start_at": "2023-03",
        "end_at": null,
        "independent": null,
        "attribute": "他の会社の出身者",
        "votes": [
          {
            "month": "2024/6",
            "ratio": 97.718
          },
          {
            "month": "2025/6",
            "ratio": 97.875
          },
          {
            "month": "2026/6",
            "ratio": 93.2
          }
        ],
        "company_html_url": "https://the-shashi.com/tse/9468/"
      }
    ],
    "career": [
      {
        "ym": "1988-04",
        "kind": "民間",
        "org": "リクルートHD",
        "stock_code": "6098",
        "role": "入社",
        "current": false,
        "row_text": "㈱リクルート入社",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2002-12",
        "kind": "民間",
        "org": "バイアコム・ネットワークス・ジャパン",
        "stock_code": null,
        "role": "代表取締役社長兼CEO",
        "current": false,
        "row_text": "エム・ティー・ヴィー・ジャパン㈱（現バイアコム・ネットワークス・ジャパン㈱）代表取締役社長兼CEO",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2007-01",
        "kind": "民間",
        "org": "マイクロソフト",
        "stock_code": null,
        "role": "執行役員",
        "current": false,
        "row_text": "マイクロソフト㈱執行役員",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2009-02",
        "kind": "民間",
        "org": "マイクロソフト",
        "stock_code": null,
        "role": "常務執行役員",
        "current": false,
        "row_text": "マイクロソフト㈱常務執行役員",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2014-02",
        "kind": "民間",
        "org": "Twitter Japan",
        "stock_code": null,
        "role": "代表取締役",
        "current": false,
        "row_text": "Twitter Japan㈱代表取締役",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2017-01",
        "kind": "民間",
        "org": "Twitter,Inc.",
        "stock_code": null,
        "role": "JPKR,Client Solutions 事業担当副社長",
        "current": false,
        "row_text": "Twitter,Inc.,JPKR,Client Solutions 事業担当副社長",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2021-05",
        "kind": "民間",
        "org": "Twitter,Inc.",
        "stock_code": null,
        "role": "JAPAC,Twitter Client Solutions 事業担当副社長",
        "current": false,
        "row_text": "Twitter,Inc.,JAPAC,Twitter Client Solutions 事業担当副社長",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2021-06",
        "kind": "民間",
        "org": "サンリオ",
        "stock_code": "8136",
        "role": "社外取締役",
        "current": true,
        "row_text": "サンリオ社外取締役（現任）",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2023-06",
        "kind": "民間",
        "org": "KADOKAWA",
        "stock_code": "9468",
        "role": "社外取締役",
        "current": true,
        "row_text": "株式会社KADOKAWA社外取締役（現任）",
        "refs": [
          "r1",
          "r2"
        ]
      },
      {
        "ym": "2023-06",
        "kind": "民間",
        "org": "吉本興業",
        "stock_code": "9665",
        "role": "社外取締役",
        "current": false,
        "row_text": "吉本興業株式会社社外取締役",
        "refs": [
          "r1"
        ]
      },
      {
        "ym": "2024-02",
        "kind": "民間",
        "org": "DAZN Japan Investment",
        "stock_code": null,
        "role": "CEO 兼アジア事業開発責任者",
        "current": true,
        "row_text": "DAZN Japan Investment 合同会社 CEO 兼アジア事業開発責任者（現任）",
        "refs": [
          "r1",
          "r2"
        ]
      }
    ],
    "sources": [
      {
        "id": "r1",
        "type": "有価証券報告書",
        "title": "有価証券報告書",
        "by": "サンリオ",
        "date": "2026-06-30",
        "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": "KADOKAWA",
        "date": "2026-06-24",
        "url": null,
        "note": "役員の状況"
      }
    ],
    "api_url": "https://the-shashi.com/api/directors/sasamoto-yu.json",
    "list_api_url": "https://the-shashi.com/api/directors.json",
    "html_url": "https://the-shashi.com/outside-directors/sasamoto-yu/"
  }
}