{
  "stock_code": "4204",
  "company_name": "積水化学工業",
  "company_color": "#004EA2",
  "industry": "chemical",
  "published": "2026-05-11",
  "updated": "2026-05-11",
  "found": {
    "year": 1947,
    "location": "大阪市北区",
    "founder": "上野次郎"
  },
  "listing": {
    "listed_year": 1949,
    "delisted_year": null,
    "unlisted": false
  },
  "is_publish": false
}