{
  "spec_version": "3",
  "endpoint": "timeline",
  "stock_code": "6871",
  "company_name": "日本マイクロニクス",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/6871/",
  "api_url": "/api/6871/timeline.json",
  "updated": "2026-08-13",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/6871/",
  "source": {
    "primary": [
      "有価証券報告書",
      "公式サイト（沿革）"
    ],
    "extraction": "有価証券報告書の沿革を基礎に、社史・報道で補完",
    "row_field": "source"
  },
  "timeline": [
    {
      "date": "1970/11",
      "importance": 2,
      "event": "半導体・真空試験装置の保守を目的として東京都目黒区にトーワ電気を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1971/7",
      "importance": 2,
      "event": "本社を東京都武蔵野市に移転し計測技術と微細加工技術の研究開発に着手",
      "source": "有価証券報告書"
    },
    {
      "date": "1973/11",
      "importance": 3,
      "event": "半導体検査装置と精密測定機器の開発・販売を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1975/4",
      "importance": 2,
      "event": "商号を日本マイクロニクスに変更",
      "source": "有価証券報告書"
    },
    {
      "date": "1976/3",
      "importance": 3,
      "event": "プローブカードを開発",
      "source": "有価証券報告書"
    },
    {
      "date": "1977/8",
      "importance": 2,
      "event": "マニュアルプローバ1号機が完成",
      "source": "有価証券報告書"
    },
    {
      "date": "1981/5",
      "importance": 1,
      "event": "青森県南津軽郡平賀町に平賀工場を新設",
      "source": "有価証券報告書"
    },
    {
      "date": "1985/3",
      "importance": 1,
      "event": "青森県南津軽郡平賀町に新平賀工場を新設",
      "source": "有価証券報告書"
    },
    {
      "date": "1985/8",
      "importance": 1,
      "event": "大分県大分市に大分工場を新設",
      "source": "有価証券報告書"
    },
    {
      "date": "1985/12",
      "importance": 3,
      "event": "液晶ディスプレイ検査装置1号機が完成",
      "source": "有価証券報告書"
    },
    {
      "date": "1987/3",
      "importance": 1,
      "event": "熊本県熊本市に熊本工場を新設",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/8",
      "importance": 1,
      "event": "東京都三鷹市に研究開発センターを開設",
      "source": "有価証券報告書"
    },
    {
      "date": "1992/1",
      "importance": 2,
      "event": "パッケージプローブの開発に着手",
      "source": "有価証券報告書"
    },
    {
      "date": "1997/4",
      "importance": 1,
      "event": "日本証券業協会に株式を店頭登録",
      "source": "有価証券報告書"
    },
    {
      "date": "1999/3",
      "importance": 1,
      "event": "米国にサンノゼ支店を開設",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/7",
      "importance": 1,
      "event": "青森県南津軽郡平賀町に青森松崎工場を増設",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/1",
      "importance": 1,
      "event": "中国に旺傑芯微電子（上海）有限公司を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2004/12",
      "importance": 1,
      "event": "店頭登録を取消しジャスダック証券取引所に株式を上場",
      "source": "有価証券報告書"
    },
    {
      "date": "2005/1",
      "importance": 3,
      "event": "世界初の8インチウェーハ一括測定プローブカードを製品化",
      "source": "有価証券報告書"
    },
    {
      "date": "2005/5",
      "importance": 2,
      "event": "半導体BISTテスタを製品化",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/10",
      "importance": 1,
      "event": "韓国にMEK Co.,Ltd.を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2013/7",
      "importance": 1,
      "event": "東京証券取引所JASDAQ（スタンダード）に上場",
      "source": "有価証券報告書"
    },
    {
      "date": "2015/11",
      "importance": 1,
      "event": "東京証券取引所市場第一部に上場",
      "source": "有価証券報告書"
    },
    {
      "date": "2019/12",
      "importance": 2,
      "event": "決算期を9月30日から12月31日に変更",
      "source": "公式サイト（沿革）"
    },
    {
      "date": "2022/4",
      "importance": 1,
      "event": "東京証券取引所の市場区分見直しによりプライム市場に移行",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/12",
      "importance": 1,
      "event": "青森工場に新棟を増築",
      "source": "有価証券報告書"
    }
  ]
}