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  "updated": "2026-08-15",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/7220/",
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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": "1938/4",
      "importance": 3,
      "event": "東京都品川区戸越で大塚美春が大塚製作所を創業",
      "source": "有価証券報告書"
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      "date": "1944/1",
      "importance": 2,
      "event": "東京都北多摩郡武蔵野町に大塚航空工業を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1946/10",
      "importance": 2,
      "event": "本社を愛知県豊橋市大崎町に移転、武蔵産業に商号変更",
      "source": "有価証券報告書"
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    {
      "date": "1947/4",
      "importance": 2,
      "event": "ミシン部品の製造に転換、天秤カム・送りカム等を製造",
      "source": "有価証券報告書"
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    {
      "date": "1956/9",
      "importance": 3,
      "event": "本田技研工業と取引開始、カムシャフト等の二輪車部品を製造",
      "source": "有価証券報告書"
    },
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      "date": "1962/7",
      "importance": 1,
      "event": "久保田鉄工（現クボタ）と取引開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1963/9",
      "importance": 2,
      "event": "商号を武蔵精密工業に変更",
      "source": "有価証券報告書"
    },
    {
      "date": "1964/2",
      "importance": 2,
      "event": "愛知県豊橋市植田町に植田工場を新設、冷間鍛造に参入",
      "source": "有価証券報告書"
    },
    {
      "date": "1965/6",
      "importance": 1,
      "event": "三重県鈴鹿市平田町に鈴鹿工場を新設",
      "source": "有価証券報告書"
    },
    {
      "date": "1967/4",
      "importance": 3,
      "event": "ホンダNシリーズ向けボールジョイント・エンジン部品を製造",
      "source": "有価証券報告書"
    },
    {
      "date": "1967/4",
      "importance": 2,
      "event": "ミシン部品の製造を打ち切り",
      "source": "有価証券報告書"
    },
    {
      "date": "1968/9",
      "importance": 1,
      "event": "川崎重工業と取引開始、カムシャフトを受注",
      "source": "有価証券報告書"
    },
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      "date": "1969/9",
      "importance": 1,
      "event": "愛知県新城市長篠に鳳来工場を新設",
      "source": "有価証券報告書"
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    {
      "date": "1974/12",
      "importance": 1,
      "event": "熊本県錦町に本田技研工業との合弁で九州武蔵精密を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1978/7",
      "importance": 2,
      "event": "フォードとボールジョイントの取引を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1980/8",
      "importance": 2,
      "event": "米国ミシガン州にムサシユーエスエーを設立",
      "source": "有価証券報告書"
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    {
      "date": "1982/8",
      "importance": 1,
      "event": "愛知県豊橋市明海町に明海工場を新設",
      "source": "有価証券報告書"
    },
    {
      "date": "1987/2",
      "importance": 3,
      "event": "本田技研工業が武蔵精密工業の発行済株式の20.1％を取得",
      "source": "有価証券報告書"
    },
    {
      "date": "1987/12",
      "importance": 1,
      "event": "タイ パツムタニに合弁でムサシオートパーツを設立",
      "source": "有価証券報告書"
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    {
      "date": "1991/3",
      "importance": 1,
      "event": "石川県志賀町の能登中核工業団地に能登工場を新設",
      "source": "有価証券報告書"
    },
    {
      "date": "1993/7",
      "importance": 1,
      "event": "英国サウスウエルズにティーエーピーマニュファクチュアリングを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/1",
      "importance": 2,
      "event": "本田技研工業が第三者割当増資を引受け、持株比率29.8％に",
      "source": "有価証券報告書"
    },
    {
      "date": "1998/12",
      "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": "2000/2",
      "importance": 1,
      "event": "ハンガリー エルチにムサシハンガリーマニュファクチャリングを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2002/7",
      "importance": 1,
      "event": "インド ハリアナ州にムサシオートパーツインディアを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/1",
      "importance": 1,
      "event": "中国広東省に武蔵汽車配件（中山）有限公司を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2004/3",
      "importance": 1,
      "event": "東京証券取引所市場第二部及び名古屋証券取引所市場第二部に上場",
      "source": "有価証券報告書"
    },
    {
      "date": "2005/3",
      "importance": 1,
      "event": "東京証券取引所市場第一部及び名古屋証券取引所市場第一部に指定",
      "source": "有価証券報告書"
    },
    {
      "date": "2005/12",
      "importance": 1,
      "event": "愛知県豊橋市明海町に第二明海工場を新設",
      "source": "有価証券報告書"
    },
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      "date": "2009/3",
      "importance": 1,
      "event": "石川県志賀町の能登工場を閉鎖",
      "source": "有価証券報告書"
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    {
      "date": "2012/3",
      "importance": 1,
      "event": "メキシコ サンルイスポトシにムサシオートパーツメキシコを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2016/6",
      "importance": 2,
      "event": "ドイツのハイホールディングを買収",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/11",
      "importance": 1,
      "event": "愛知県豊橋市明海町に工機事業部の工場を新設",
      "source": "有価証券報告書"
    },
    {
      "date": "2018/10",
      "importance": 2,
      "event": "浅田可鍛鋳鉄所を子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2019/7",
      "importance": 2,
      "event": "SixEye Interactiveとの合弁でMusashi AIを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2020/4",
      "importance": 3,
      "event": "JMエナジーを子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/4",
      "importance": 1,
      "event": "東京証券取引所の市場区分見直しに伴いプライム市場に移行",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/7",
      "importance": 1,
      "event": "ムサシデルタイーアクスルインディアを設立",
      "source": "有価証券報告書"
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}