{
  "spec_version": "5",
  "endpoint": "director",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/outside-directors/umeno-seiichiro/",
  "api_url": "/api/directors/umeno-seiichiro.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/umeno-seiichiro/",
  "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": "umeno-seiichiro",
    "name": "梅野晴一郎",
    "last_name": "梅野",
    "first_name": "晴一郎",
    "romaji": "Umeno Seiichiro",
    "last_name_romaji": "Umeno",
    "first_name_romaji": "Seiichiro",
    "birth": "1961-09",
    "directorships": [
      {
        "stock_code": "3964",
        "company_name": "オークネット",
        "role": "取締役",
        "start_at": "2019-12",
        "end_at": null,
        "independent": null,
        "attribute": "弁護士",
        "votes": [
          {
            "month": "2025/3",
            "ratio": 93.83
          },
          {
            "month": "2026/3",
            "ratio": 96.93
          }
        ],
        "company_html_url": "https://the-shashi.com/tse/3964/"
      }
    ],
    "career": [
      {
        "ym": "1989-04",
        "kind": "他",
        "org": "資格",
        "stock_code": null,
        "role": "弁護士 登録 東京八重洲法律事務所入所",
        "current": false,
        "row_text": "弁護士登録 東京八重洲法律事務所入所",
        "refs": [
          "r1"
        ]
      },
      {
        "ym": "1990-08",
        "kind": "民間",
        "org": "桝田・江尻法律事務所",
        "stock_code": null,
        "role": "入所",
        "current": false,
        "row_text": "桝田・江尻法律事務所入所",
        "refs": [
          "r1"
        ]
      },
      {
        "ym": "1995-01",
        "kind": "他",
        "org": "資格",
        "stock_code": null,
        "role": "米国ニューヨーク州弁護士 登録",
        "current": false,
        "row_text": "米国ニューヨーク州弁護士登録",
        "refs": [
          "r1"
        ]
      },
      {
        "ym": "2006-03",
        "kind": "民間",
        "org": "オークネット",
        "stock_code": "3964",
        "role": "取締役(2008年３月まで)",
        "current": false,
        "row_text": "オークネット取締役(2008年３月まで)",
        "refs": [
          "r1"
        ]
      },
      {
        "ym": "2007-04",
        "kind": "民間",
        "org": "長島・大野・常松法律事務所",
        "stock_code": null,
        "role": "パートナー",
        "current": true,
        "row_text": "長島・大野・常松法律事務所パートナー(現任)",
        "refs": [
          "r1"
        ]
      },
      {
        "ym": "2010-03",
        "kind": "民間",
        "org": "日本ベリサイン",
        "stock_code": null,
        "role": "監査役",
        "current": false,
        "row_text": "日本ベリサイン㈱監査役",
        "refs": [
          "r1"
        ]
      },
      {
        "ym": "2016-03",
        "kind": "民間",
        "org": "オークネット",
        "stock_code": "3964",
        "role": "取締役",
        "current": true,
        "row_text": "オークネット取締役(現任)",
        "refs": [
          "r1"
        ]
      },
      {
        "ym": "2017-04",
        "kind": "官公庁",
        "org": "法制審議会会社法制（企業統治等関係）部会",
        "stock_code": null,
        "role": "幹事",
        "current": false,
        "row_text": "法制審議会会社法制（企業統治等関係）部会幹事",
        "refs": [
          "r1"
        ]
      },
      {
        "ym": "2019-06",
        "kind": "民間",
        "org": "スパークス・グループ",
        "stock_code": "8739",
        "role": "監査役",
        "current": false,
        "row_text": "スパークス・グループ㈱監査役",
        "refs": [
          "r1"
        ]
      }
    ],
    "sources": [
      {
        "id": "r1",
        "type": "有価証券報告書",
        "title": "有価証券報告書",
        "by": "オークネット",
        "date": "2026-03-24",
        "url": null,
        "note": "役員の状況"
      }
    ],
    "api_url": "https://the-shashi.com/api/directors/umeno-seiichiro.json",
    "list_api_url": "https://the-shashi.com/api/directors.json",
    "html_url": "https://the-shashi.com/outside-directors/umeno-seiichiro/"
  }
}