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  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
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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": "1937/5",
      "importance": 3,
      "event": "牧野常造が立フライス盤の専門メーカー牧野商店製作部を創業",
      "source": "有価証券報告書"
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      "date": "1942/3",
      "importance": 2,
      "event": "牧野竪フライス製作所に商号変更",
      "source": "有価証券報告書"
    },
    {
      "date": "1942/3",
      "importance": 1,
      "event": "清水正利が経営に参加",
      "source": "有価証券報告書"
    },
    {
      "date": "1951/5",
      "importance": 2,
      "event": "株式会社組織に改組（資本金300万円）",
      "source": "有価証券報告書"
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    {
      "date": "1953/4",
      "importance": 1,
      "event": "超精密万能工具研削盤を開発",
      "source": "有価証券報告書"
    },
    {
      "date": "1958/3",
      "importance": 1,
      "event": "一番タレット形立フライス盤Kシリーズを開発",
      "source": "有価証券報告書"
    },
    {
      "date": "1958/3",
      "importance": 3,
      "event": "わが国最初の磁気テープによる数値制御立フライス盤を開発",
      "source": "有価証券報告書"
    },
    {
      "date": "1961/4",
      "importance": 2,
      "event": "牧野フライス製作所に商号変更",
      "source": "有価証券報告書"
    },
    {
      "date": "1964/7",
      "importance": 1,
      "event": "東京証券取引所第二部に上場（資本金2億円）",
      "source": "有価証券報告書"
    },
    {
      "date": "1966/10",
      "importance": 3,
      "event": "マシニングセンタの国産第一号機を開発",
      "source": "有価証券報告書"
    },
    {
      "date": "1967/6",
      "importance": 1,
      "event": "神奈川県愛甲郡に厚木工場を建設",
      "source": "有価証券報告書"
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    {
      "date": "1971/8",
      "importance": 1,
      "event": "東京証券取引所第一部および大阪証券取引所第一部に上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1972/8",
      "importance": 1,
      "event": "適応制御マシニングセンタによるトランスファラインを開発",
      "source": "有価証券報告書"
    },
    {
      "date": "1975/2",
      "importance": 1,
      "event": "米国に子会社MAKINO U.S.A. INC.を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1975/11",
      "importance": 3,
      "event": "放電加工機の開発・生産・販売を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1978/10",
      "importance": 2,
      "event": "西独のハイデンライヒアンドハーベック社に資本参加",
      "source": "有価証券報告書"
    },
    {
      "date": "1978/12",
      "importance": 1,
      "event": "池貝機械工業に資本参加",
      "source": "有価証券報告書"
    },
    {
      "date": "1980/10",
      "importance": 1,
      "event": "放電加工機のNC化を完了",
      "source": "有価証券報告書"
    },
    {
      "date": "1981/9",
      "importance": 3,
      "event": "米国レブロンド社を買収",
      "source": "有価証券報告書"
    },
    {
      "date": "1983/10",
      "importance": 1,
      "event": "厚木事業所のFMS工場が稼動を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1986/5",
      "importance": 1,
      "event": "モジュールMMCを開発",
      "source": "有価証券報告書"
    },
    {
      "date": "1987/11",
      "importance": 1,
      "event": "山梨県南都留郡に富士勝山工場を建設",
      "source": "有価証券報告書"
    },
    {
      "date": "1987/12",
      "importance": 2,
      "event": "レブロンド・マキノ・アジア社を子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "1991/9",
      "importance": 1,
      "event": "GI制御・スーパーGI制御を開発",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/11",
      "importance": 1,
      "event": "高速大型5軸マシニングセンタMAGシリーズを開発",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/6",
      "importance": 1,
      "event": "インドにMAKINO INDIA PRIVATE LIMITEDを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2002/7",
      "importance": 1,
      "event": "中国に牧野机床（中国）有限公司を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2010/2",
      "importance": 1,
      "event": "シンガポールにR&Dセンタを開設",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/2",
      "importance": 1,
      "event": "山梨県富士吉田市に富士吉田工場を建設",
      "source": "有価証券報告書"
    },
    {
      "date": "2020/11",
      "importance": 2,
      "event": "レーザ加工機LB300およびLB500を開発",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/4",
      "importance": 1,
      "event": "プライム市場に移行",
      "source": "有価証券報告書"
    },
    {
      "date": "2023/11",
      "importance": 1,
      "event": "インドのコインバトールに治具工場を建設",
      "source": "有価証券報告書"
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