{
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  "stock_code": "6651",
  "company_name": "日東工業",
  "content_lang": "ja",
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  "api_url": "/api/6651/history.json",
  "updated": "2026-09-19",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/6651/decisions/",
  "source": {
    "long_term": {
      "primary": [
        "有価証券報告書"
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      "extraction": "EDINET の XBRL、kabupro 掲載の旧有価証券報告書、会社年鑑・社史等からの転記",
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      "caveat": "創業期から現在までを 1 本に繋いだ長期系列のため、年代により出所・単位・連結範囲が変わる。行ごとの reference / unit / consolidation を必ず参照すること"
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  "title": "日東工業の歴史概略",
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