{
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  "company_name": "岩崎電気",
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  "updated": "2026-08-23",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/6924/",
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    "extraction": "有価証券報告書の沿革を基礎に、社史・報道で補完",
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      "date": "1944/8",
      "importance": 1,
      "event": "超短波兵器部品の製造を目的に渋谷区で岩崎電波工業を創立",
      "source": "有価証券報告書"
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      "date": "1945/9",
      "importance": 1,
      "event": "終戦による企業縮小に伴い岩崎電気に商号変更",
      "source": "有価証券報告書"
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    {
      "date": "1949/1",
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      "event": "西荻窪工場を本社工場として再建",
      "source": "有価証券報告書"
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      "date": "1949/3",
      "importance": 3,
      "event": "反射形白熱電球と照明器具の生産を開始",
      "source": "有価証券報告書"
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      "date": "1955/5",
      "importance": 3,
      "event": "高圧水銀ランプの生産を開始",
      "source": "有価証券報告書"
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    {
      "date": "1960/6",
      "importance": 1,
      "event": "埼玉県行田市に埼玉製作所を建設",
      "source": "有価証券報告書"
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      "date": "1961/10",
      "importance": 1,
      "event": "東京証券取引所市場第二部に上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1961/11",
      "importance": 1,
      "event": "大阪証券取引所市場第二部に上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1962/4",
      "importance": 1,
      "event": "本社を東京都港区に移転",
      "source": "有価証券報告書"
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      "date": "1964",
      "importance": 2,
      "event": "東京五輪の国立競技場に照明を納入",
      "source": "公式サイト沿革"
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      "date": "1968",
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      "event": "メタルハライドランプを商品化",
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      "event": "東京・大阪両証券取引所市場第一部に指定",
      "source": "有価証券報告書"
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      "importance": 2,
      "event": "米国GE社との合弁でアイ・ライティング・システムを設立",
      "source": "有価証券報告書"
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      "source": "有価証券報告書"
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      "importance": 2,
      "event": "米国のエナジー・サイエンス・インクを買収",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/1",
      "importance": 2,
      "event": "東京タワーのライトアップに光源を供給",
      "source": "公式サイト沿革"
    },
    {
      "date": "1995/12",
      "importance": 1,
      "event": "中国に大連岩崎電気を設立",
      "source": "有価証券報告書"
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    {
      "date": "1997/8",
      "importance": 2,
      "event": "伊東電機を買収",
      "source": "有価証券報告書"
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    {
      "date": "2004/11",
      "importance": 1,
      "event": "大阪証券取引所市場第一部で上場廃止",
      "source": "有価証券報告書"
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    {
      "date": "2010/12",
      "importance": 3,
      "event": "LEDアイランプを発売",
      "source": "有価証券報告書"
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      "date": "2019/10",
      "importance": 1,
      "event": "本社を東京都中央区東日本橋に移転",
      "source": "有価証券報告書"
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    {
      "date": "2020",
      "importance": 2,
      "event": "一般照明用水銀ランプの生産を終了",
      "source": "公式サイト沿革"
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    {
      "date": "2022/4",
      "importance": 1,
      "event": "東京証券取引所プライム市場に移行",
      "source": "有価証券報告書"
    },
    {
      "date": "2023/3",
      "importance": 3,
      "event": "カーライル・グループによる株式公開買付けが成立",
      "source": null
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    {
      "date": "2023/6",
      "importance": 1,
      "event": "東京証券取引所プライム市場で上場廃止",
      "source": null
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}