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Hideaki SAKAI

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  • Yokohama-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wave spring
    • Patent number 11,396,921
    • Issue date Jul 26, 2022
    • NHK Spring Co., Ltd.
    • Hideaki Sakai
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Disc spring
    • Patent number 11,236,793
    • Issue date Feb 1, 2022
    • NHK Spring Co., Ltd.
    • Hideaki Sakai
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    DISC SPRING
    • Publication number 20210131515
    • Publication date May 6, 2021
    • NHK Spring Co., Ltd.
    • Hideaki SAKAI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    WAVE SPRING
    • Publication number 20210003185
    • Publication date Jan 7, 2021
    • NHK Spring Co., Ltd.
    • Hideaki SAKAI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    WAVE SPRING
    • Publication number 20200011392
    • Publication date Jan 9, 2020
    • NHK SPRING CO., LTD.
    • Hideaki SAKAI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...