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  "updated": "2026-08-14",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/7240/",
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      "有価証券報告書【沿革】"
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      "date": "1939/12",
      "importance": 2,
      "event": "東京都葛飾区に江戸川精機を設立",
      "source": "有価証券報告書【沿革】"
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      "date": "1941/7",
      "importance": 1,
      "event": "神戸に日本ベアリング製造を設立",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1951/12",
      "importance": 3,
      "event": "東京オイルシール工業と日本油止工業の合併で日本オイルシール工業が発足",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1954/6",
      "importance": 1,
      "event": "本社および工場を東京都大田区に移転",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1960/3",
      "importance": 3,
      "event": "独フロイデンベルグ社と資本提携",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1960/8",
      "importance": 1,
      "event": "神奈川県藤沢市に藤沢工場を建設",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1961/10",
      "importance": 1,
      "event": "東京証券取引所に上場",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1964/10",
      "importance": 1,
      "event": "日本シールオール（現イーグル工業）を設立",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1967/8",
      "importance": 1,
      "event": "静岡県牧之原市に静岡工場を建設",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1968/3",
      "importance": 1,
      "event": "米国にＮＯＫ Ｉｎｃ．を設立",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1968/4",
      "importance": 1,
      "event": "福島県福島市に福島工場を建設",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1969/11",
      "importance": 3,
      "event": "日本メクトロン（現メクテック）を設立",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1970/4",
      "importance": 1,
      "event": "熊本県阿蘇市に熊本工場を建設",
      "source": "有価証券報告書【沿革】"
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    {
      "date": "1976/12",
      "importance": 1,
      "event": "ＮＯＫクリューバーを設立",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1978/3",
      "importance": 1,
      "event": "韓国の平和オイルシール工業に資本参加",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1982/1",
      "importance": 1,
      "event": "イーグル工業が東京証券取引所に上場",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1985/7",
      "importance": 3,
      "event": "ＮＯＫに商号変更",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1986/9",
      "importance": 1,
      "event": "台湾にメクテックＣｏｒｐ．台湾を設立",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1988/10",
      "importance": 1,
      "event": "タイにタイＮＯＫを設立",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1989/7",
      "importance": 2,
      "event": "米国でフロイデンベルグ社との合弁事業を開始",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "1995/6",
      "importance": 1,
      "event": "中国に無錫ＮＯＫフロイデンベルグを設立",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "2004/1",
      "importance": 1,
      "event": "鳥取県南部町に鳥取事業場を建設",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "2004/8",
      "importance": 1,
      "event": "ベトナムにベトナムＮＯＫを設立",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "2005/4",
      "importance": 1,
      "event": "神奈川県藤沢市に湘南開発センターを建設",
      "source": "有価証券報告書【沿革】"
    },
    {
      "date": "2010/4",
      "importance": 1,
      "event": "茨城県北茨城市に北茨城事業場を建設",
      "source": "有価証券報告書【沿革】"
    },
    {
      "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【沿革】"
    },
    {
      "date": "2023/10",
      "importance": 1,
      "event": "エストーの株式を取得し子会社化",
      "source": "有価証券報告書【沿革】"
    }
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}