{
  "spec_version": "5",
  "endpoint": "ceo-person",
  "stock_code": "onoda-cement",
  "company_name": "小野田セメント",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/onoda-cement/executives/ceo/kasai-junpachi/",
  "api_url": "/api/onoda-cement/ceo/kasai-junpachi.json",
  "updated": "2026-10-27",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/onoda-cement/executives/ceo/kasai-junpachi/",
  "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": "kasai-junpachi",
    "name": "笠井順八",
    "kana": "かさい　じゅんぱち",
    "surname": "笠井",
    "given_name": "順八",
    "birthdate": "1835-05-31",
    "hometown": "長門国萩（現・山口県萩市）",
    "education": null,
    "prev_role": null,
    "origin": "創業者。萩藩士で赤間関御用所詰などを務めた旧士族。廃藩後に官を辞し、金禄公債を元手に士族授産としてセメント製造会社を興した",
    "origin_type": "創業家",
    "career": [
      {
        "company": "小野田セメント",
        "from": "1881-05",
        "to": "1901-11",
        "roles": [
          {
            "date": "1881-05",
            "role": "社長（セメント製造会社創立）",
            "is_ceo_appointed": true
          },
          {
            "date": "1901-11",
            "role": "社長辞任（宗像事件の損失処理で私財を提供）",
            "is_ceo_retired": true,
            "retirement_basis": "press"
          }
        ]
      }
    ],
    "references": [
      {
        "source": "小野田セメント百年史（日本経営史研究所編、1981年） 口絵「歴代社長」・第1章第2節「創立当初の株主と役員」",
        "for": [
          "career",
          "birthdate",
          "hometown",
          "origin"
        ]
      },
      {
        "source": "国立国会図書館サーチ 書誌『笠井順八翁小傳』の読み（カサイ ジュンパチオウ ショウデン）",
        "url": "https://ndlsearch.ndl.go.jp/api/opensearch?title=%E7%AC%A0%E4%BA%95%E9%A0%86%E5%85%AB",
        "for": [
          "kana"
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/onoda-cement/executives/ceo/kasai-junpachi/",
    "term_start": "1881-05",
    "term_end": "1901-11",
    "api_url": "https://the-shashi.com/api/onoda-cement/ceo/kasai-junpachi.json",
    "list_api_url": "https://the-shashi.com/api/onoda-cement/ceo.json",
    "predecessor": null,
    "successor": {
      "slug": "河北勘七",
      "name": "河北勘七",
      "api_url": "https://the-shashi.com/api/onoda-cement/ceo/河北勘七.json"
    }
  }
}