{
  "spec_version": "6",
  "endpoint": "ceo-person",
  "stock_code": "1942",
  "company_name": "関電工",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/1942/executives/ceo/yamaguchi-manabu/",
  "api_url": "/api/1942/ceo/yamaguchi-manabu.json",
  "updated": "2026-11-12",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/1942/executives/ceo/yamaguchi-manabu/",
  "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": "yamaguchi-manabu",
    "name": "山口学",
    "kana": "やまぐち　まなぶ",
    "surname": "山口",
    "given_name": "学",
    "origin": "東京電力出身（1968年入社）。東京電力の執行役員神奈川支店長から社長へ",
    "origin_type": "外部出身",
    "hometown": null,
    "prev_role": "東京電力 執行役員 神奈川支店長",
    "career": [
      {
        "company": "東京電力株式会社",
        "from": "1968-04",
        "to": "2005-06",
        "roles": [
          {
            "date": "1968-04",
            "role": "入社",
            "event": "入社"
          },
          {
            "date": "2004-06",
            "role": "執行役員 神奈川支店長",
            "officer": "執行役員",
            "dept": "神奈川支店長"
          }
        ]
      },
      {
        "company": "関電工",
        "from": "2005-06",
        "to": null,
        "roles": [
          {
            "date": "2005-06",
            "role": "取締役社長",
            "board": "取締役",
            "title": "社長",
            "is_ceo_appointed": true
          },
          {
            "date": "2012-06",
            "role": "社長退任（次期社長登用による推定）",
            "title": "社長",
            "event": "退任",
            "estimated": true,
            "is_ceo_retired": true,
            "retirement_basis": "next_ceo"
          }
        ]
      }
    ],
    "references": [
      {
        "source": "関電工 アニュアルレポート 2005（2005年3月期）社長インタビュー",
        "for": [
          "origin"
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/1942/executives/ceo/yamaguchi-manabu/",
    "term_start": "2005-06",
    "term_end": "2012-06",
    "api_url": "https://the-shashi.com/api/1942/ceo/yamaguchi-manabu.json",
    "list_api_url": "https://the-shashi.com/api/1942/ceo.json",
    "predecessor": {
      "slug": "尾崎之孝",
      "name": "尾崎之孝",
      "api_url": "https://the-shashi.com/api/1942/ceo/尾崎之孝.json"
    },
    "successor": {
      "slug": "mizue-hiroshi",
      "name": "水江博",
      "api_url": "https://the-shashi.com/api/1942/ceo/mizue-hiroshi.json"
    }
  }
}