{
  "spec_version": "5",
  "endpoint": "ceo-person",
  "stock_code": "9437",
  "company_name": "NTTドコモ",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/9437/executives/ceo/tachikawa-keiji/",
  "api_url": "/api/9437/ceo/tachikawa-keiji.json",
  "updated": "2026-10-13",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/9437/executives/ceo/tachikawa-keiji/",
  "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": "tachikawa-keiji",
    "name": "立川敬二",
    "kana": "たちかわ　けいじ",
    "surname": "立川",
    "given_name": "敬二",
    "birthdate": "1939",
    "origin": "外部出身（日本電信電話からの派遣）。1962年に日本電信電話公社へ入社し、施設局・NTTアメリカなどを経て1992年NTT取締役、1995年常務、1996年副社長。1997年にドコモ副社長として着任し、1998年6月に社長へ就任した。在任中に1998年10月の株式上場、2001年10月の第3世代サービス「FOMA」開始、海外通信会社への大型出資を進めている",
    "origin_type": "外部出身",
    "education": "東京大学工学部 (1962)",
    "prev_role": "代表取締役副社長",
    "prev_company": "日本電信電話",
    "career": [
      {
        "company": "日本電信電話公社",
        "from": "1962",
        "to": "1997",
        "roles": [
          {
            "date": "1962",
            "role": "入社"
          },
          {
            "date": "1992",
            "role": "日本電信電話 取締役"
          },
          {
            "date": "1995",
            "role": "日本電信電話 常務取締役"
          },
          {
            "date": "1996",
            "role": "日本電信電話 代表取締役副社長"
          }
        ]
      },
      {
        "company": "NTTドコモ",
        "from": "1997",
        "to": null,
        "roles": [
          {
            "date": "1997",
            "role": "代表取締役副社長"
          },
          {
            "date": "1998-06",
            "role": "代表取締役社長",
            "is_ceo_appointed": true
          },
          {
            "date": "2004-06",
            "role": "社長退任",
            "is_ceo_retired": true,
            "retirement_basis": "press"
          }
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/9437/executives/ceo/tachikawa-keiji/",
    "term_start": "1998-06",
    "term_end": "2004-06",
    "api_url": "https://the-shashi.com/api/9437/ceo/tachikawa-keiji.json",
    "list_api_url": "https://the-shashi.com/api/9437/ceo.json",
    "predecessor": {
      "slug": "oboshi-koji",
      "name": "大星公二",
      "api_url": "https://the-shashi.com/api/9437/ceo/oboshi-koji.json"
    },
    "successor": {
      "slug": "nakamura-masao",
      "name": "中村維夫",
      "api_url": "https://the-shashi.com/api/9437/ceo/nakamura-masao.json"
    }
  }
}