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Koichi YAMAKA

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  • Hitachinaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Shock absorber
    • Patent number 12,305,732
    • Issue date May 20, 2025
    • HITACHI ASTEMO, LTD.
    • Milton Muzvidziwa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Cylinder device
    • Patent number 12,151,533
    • Issue date Nov 26, 2024
    • Hitachi Astemo, Ltd.
    • Riichi Nagao
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Shock absorber
    • Patent number 12,115,830
    • Issue date Oct 15, 2024
    • HITACHI ASTEMO, LTD.
    • Sadatomo Matsumura
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Shock absorber
    • Patent number 12,085,141
    • Issue date Sep 10, 2024
    • HITACHI ASTEMO, LTD.
    • Masato Suehiro
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    High-pressure fuel supply pump and method of manufacturing the same
    • Patent number 11,131,400
    • Issue date Sep 28, 2021
    • Hitachi Automotive Systems, Ltd.
    • Mina Amo
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    SOLENOID, DAMPING FORCE ADJUSTMENT MECHANISM, AND DAMPING FORCE ADJ...
    • Publication number 20250180137
    • Publication date Jun 5, 2025
    • Hitachi Astemo, Ltd.
    • Milton MUZVIDZIWA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SOLENOID, DAMPING FORCE ADJUSTMENT MECHANISM, AND DAMPING FORCE ADJ...
    • Publication number 20240083208
    • Publication date Mar 14, 2024
    • Hitachi Astemo, Ltd.
    • Miho SHIMAZAKI
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    SHOCK ABSORBER
    • Publication number 20240025220
    • Publication date Jan 25, 2024
    • Hitachi Astemo, Ltd.
    • Sadatomo MATSUMURA
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    SHOCK ABSORBER
    • Publication number 20230322035
    • Publication date Oct 12, 2023
    • Hitachi Astemo, Ltd.
    • Yoshihiro YAMAGUCHI
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    SHOCK ABSORBER
    • Publication number 20230037408
    • Publication date Feb 9, 2023
    • Hitachi Astemo, Ltd.
    • Milton MUZVIDZIWA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SHOCK ABSORBER
    • Publication number 20220112933
    • Publication date Apr 14, 2022
    • Hitachi Astemo, Ltd.
    • Koichi YAMAKA
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    CYLINDER DEVICE
    • Publication number 20220088983
    • Publication date Mar 24, 2022
    • Hitachi Astemo, Ltd.
    • Riichi NAGAO
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    SHOCK ABSORBER
    • Publication number 20220018418
    • Publication date Jan 20, 2022
    • Hitachi Astemo, Ltd.
    • Masato SUEHIRO
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    HIGH-PRESSURE FUEL SUPPLY PUMP AND METHOD OF MANUFACTURING THE SAME
    • Publication number 20200284368
    • Publication date Sep 10, 2020
    • Hitachi Automotive Systems, Ltd.
    • Mina AMO
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR