TREA

Wataru Tokunaga

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Patents Grantslast 30 patents

  • Information Patent Grant

    Sealing apparatus
    • Patent number 10,605,367
    • Issue date Mar 31, 2020
    • NOK Corporation
    • Wataru Tokunaga
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing device
    • Patent number 9,388,705
    • Issue date Jul 12, 2016
    • NOK Corporation
    • Kazunari Seki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing device and sealing structure
    • Patent number 9,309,973
    • Issue date Apr 12, 2016
    • NOK Corporation
    • Kazunari Seki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing device and sealing structure
    • Patent number 9,157,530
    • Issue date Oct 13, 2015
    • NOK Corporation
    • Kazunari Seki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    DUST SEAL
    • Publication number 20200309267
    • Publication date Oct 1, 2020
    • NOK Corporation
    • Wataru TOKUNAGA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    ANNULAR DUST SEAL
    • Publication number 20200292080
    • Publication date Sep 17, 2020
    • NOK Corporation
    • Wataru TOKUNAGA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SEALING APPARATUS
    • Publication number 20180335145
    • Publication date Nov 22, 2018
    • NOK Corporation
    • Wataru TOKUNAGA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SEALING DEVICE
    • Publication number 20150204204
    • Publication date Jul 23, 2015
    • NOK Corporation
    • Kazunari Seki
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SEALING DEVICE AND SEALING STRUCTURE
    • Publication number 20150108720
    • Publication date Apr 23, 2015
    • NOK Corporation
    • Kazunari Seki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SEALING DEVICE AND SEALING STRUCTURE
    • Publication number 20150048574
    • Publication date Feb 19, 2015
    • NOK Corporation
    • Kazunari Seki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...