TREA

Kenji Nakagawa

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  • Okayama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Coreless seal and rolling bearing
    • Patent number 8,262,291
    • Issue date Sep 11, 2012
    • NTN Corporation
    • Hideki Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Coreless Seal and Rolling Bearing
    • Publication number 20090154854
    • Publication date Jun 18, 2009
    • NTN Corporation
    • Hideki Akamatsu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...