{
  "spec_version": "5",
  "endpoint": "ceo-person",
  "stock_code": "7951",
  "company_name": "ヤマハ",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/7951/executives/ceo/kawakami-genichi/",
  "api_url": "/api/7951/ceo/kawakami-genichi.json",
  "updated": "2026-10-13",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/7951/executives/ceo/kawakami-genichi/",
  "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": "kawakami-genichi",
    "name": "川上源一",
    "kana": "かわかみ　げんいち",
    "surname": "川上",
    "given_name": "源一",
    "origin": "実質創業家（1937年入社）。第3代社長・川上嘉市氏の長男。大日本人造肥料を経て父の要請で日本楽器製造に入社し、1950年9月に38歳で第4代社長に就任した。1977年に会長へ就任したのち1980年に社長へ復帰し、1983年まで務めた",
    "origin_type": "実質創業家",
    "hometown": "静岡県",
    "birthdate": "1912",
    "education": "高千穂高等商業学校／現・高千穂大学 (1934)",
    "prev_role": null,
    "milestone": "中興の祖。二度にわたり社長を務めた",
    "career": [
      {
        "company": "大日本人造肥料",
        "roles": [
          {
            "date": "1934",
            "role": "入社"
          }
        ]
      },
      {
        "company": "日本楽器製造",
        "from": "1937",
        "to": null,
        "roles": [
          {
            "date": "1937",
            "role": "入社"
          },
          {
            "date": "1950-09",
            "role": "取締役社長",
            "is_ceo_appointed": true
          },
          {
            "date": "1977-01",
            "role": "社長退任（会長就任）",
            "is_ceo_retired": true,
            "retirement_basis": "press"
          },
          {
            "date": "1977-01",
            "role": "取締役会長"
          },
          {
            "date": "1980",
            "role": "取締役社長（復帰）",
            "is_ceo_appointed": true
          },
          {
            "date": "1983",
            "role": "社長退任（会長就任）",
            "is_ceo_retired": true,
            "retirement_basis": "press"
          },
          {
            "date": "1983",
            "role": "取締役会長"
          }
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/7951/executives/ceo/kawakami-genichi/",
    "term_start": "1950-09",
    "term_end": "1977-01",
    "api_url": "https://the-shashi.com/api/7951/ceo/kawakami-genichi.json",
    "list_api_url": "https://the-shashi.com/api/7951/ceo.json",
    "predecessor": {
      "slug": "kawakami-kaichi",
      "name": "川上嘉市",
      "api_url": "https://the-shashi.com/api/7951/ceo/kawakami-kaichi.json"
    },
    "successor": {
      "slug": "kawashima-hiroshi",
      "name": "河島博",
      "api_url": "https://the-shashi.com/api/7951/ceo/kawashima-hiroshi.json"
    }
  }
}