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Yasunari Hamaya

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  • Fukushima, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Valve stem seal device
    • Patent number 9,303,768
    • Issue date Apr 5, 2016
    • NOK Corporation
    • Yasunari Hamaya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing device
    • Patent number 7,789,210
    • Issue date Sep 7, 2010
    • NOK Corporation
    • Yasunari Hamaya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing device
    • Patent number 5,678,828
    • Issue date Oct 21, 1997
    • NOK Corporation
    • Yasunari Hamaya
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    VALVE STEM SEAL DEVICE
    • Publication number 20140077459
    • Publication date Mar 20, 2014
    • NOK Corporation
    • Yasunari Hamaya
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Hermetically Sealing Device
    • Publication number 20080023893
    • Publication date Jan 31, 2008
    • NOK CORPORATION
    • Yasunari Hamaya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Sealing Device
    • Publication number 20070256557
    • Publication date Nov 8, 2007
    • NOK Corporation
    • Yasunari Hamaya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...