{
  "stock_code": "6857",
  "company_name": "アドバンテスト",
  "company_color": "#A93F64",
  "industry": "semiconductor",
  "published": "2026-02-18",
  "updated": "2026-04-27",
  "found": {
    "year": 1954,
    "location": "愛知県豊橋市",
    "founder": "武田郁夫"
  },
  "listing": {
    "listed_year": 1983,
    "delisted_year": null,
    "unlisted": false
  },
  "old_name": "タケダ理研工業"
}