{
  "stock_code": "5401",
  "company_name": "日本製鉄",
  "company_color": "#086DAA",
  "industry": "metal",
  "published": "2024-10-14",
  "updated": "2026-05-07",
  "found": {
    "year": 1970,
    "location": "東京都千代田区",
    "founder": "※官営八幡製鐵所"
  },
  "listing": {
    "listed_year": 1950,
    "delisted_year": null,
    "unlisted": false
  },
  "old_name": "新日本製鐵"
}