{
  "spec_version": "3",
  "endpoint": "shareholders",
  "stock_code": "5231",
  "company_name": "日本セメント",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/5231/shareholders/",
  "api_url": "/api/5231/shareholders.json",
  "updated": "2026-08-23",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/5231/shareholders/",
  "source": {
    "primary": [
      "ダイヤモンド会社産業総覧 1964年版"
    ],
    "extraction": "EDINET の XBRL から機械抽出。1990 年代以前は旧有価証券報告書・年鑑類からの転記",
    "row_field": "source",
    "caveat": "持株比率は各期の開示値そのまま。信託口の名寄せは行っていない"
  },
  "long_term": [
    {
      "FY": "FY62",
      "period": "1962/12",
      "company_name_at_period": "日本セメント",
      "rank": 1,
      "name": "三菱信託銀行",
      "shareholding_ratio": 5.7,
      "shares_held": 11334800,
      "total_shares": 200000000,
      "source": "ダイヤモンド会社産業総覧 1964年版"
    },
    {
      "FY": "FY62",
      "period": "1962/12",
      "company_name_at_period": "日本セメント",
      "rank": 2,
      "name": "住友信託銀行東京支店",
      "shareholding_ratio": 3.5,
      "shares_held": 7047600,
      "total_shares": 200000000,
      "source": "ダイヤモンド会社産業総覧 1964年版"
    },
    {
      "FY": "FY62",
      "period": "1962/12",
      "company_name_at_period": "日本セメント",
      "rank": 3,
      "name": "富士銀行",
      "shareholding_ratio": 3.4,
      "shares_held": 6800000,
      "total_shares": 200000000,
      "source": "ダイヤモンド会社産業総覧 1964年版"
    },
    {
      "FY": "FY62",
      "period": "1962/12",
      "company_name_at_period": "日本セメント",
      "rank": 4,
      "name": "東洋信託銀行",
      "shareholding_ratio": 2.1,
      "shares_held": 4149420,
      "total_shares": 200000000,
      "source": "ダイヤモンド会社産業総覧 1964年版"
    },
    {
      "FY": "FY62",
      "period": "1962/12",
      "company_name_at_period": "日本セメント",
      "rank": 5,
      "name": "大和銀行東京支店",
      "shareholding_ratio": 1,
      "shares_held": 2039000,
      "total_shares": 200000000,
      "source": "ダイヤモンド会社産業総覧 1964年版"
    },
    {
      "FY": "FY62",
      "period": "1962/12",
      "company_name_at_period": "日本セメント",
      "rank": 6,
      "name": "安田生命保険",
      "shareholding_ratio": 1,
      "shares_held": 2000000,
      "total_shares": 200000000,
      "source": "ダイヤモンド会社産業総覧 1964年版"
    },
    {
      "FY": "FY62",
      "period": "1962/12",
      "company_name_at_period": "日本セメント",
      "rank": 7,
      "name": "協和銀行",
      "shareholding_ratio": 1,
      "shares_held": 2000000,
      "total_shares": 200000000,
      "source": "ダイヤモンド会社産業総覧 1964年版"
    },
    {
      "FY": "FY62",
      "period": "1962/12",
      "company_name_at_period": "日本セメント",
      "rank": 8,
      "name": "日本勧業銀行",
      "shareholding_ratio": 1,
      "shares_held": 1960000,
      "total_shares": 200000000,
      "source": "ダイヤモンド会社産業総覧 1964年版"
    },
    {
      "FY": "FY62",
      "period": "1962/12",
      "company_name_at_period": "日本セメント",
      "rank": 9,
      "name": "日清紡績",
      "shareholding_ratio": 0.8,
      "shares_held": 1600000,
      "total_shares": 200000000,
      "source": "ダイヤモンド会社産業総覧 1964年版"
    },
    {
      "FY": "FY62",
      "period": "1962/12",
      "company_name_at_period": "日本セメント",
      "rank": 10,
      "name": "千代田生命保険",
      "shareholding_ratio": 0.8,
      "shares_held": 1600000,
      "total_shares": 200000000,
      "source": "ダイヤモンド会社産業総覧 1964年版"
    }
  ]
}