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Yoshiaki YAMAKAWA

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  • Novi, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Valve opening/closing timing control device
    • Patent number 10,626,760
    • Issue date Apr 21, 2020
    • Aisin Seiki Kabushiki Kaisha
    • Yoshiaki Yamakawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Valve opening/closing timing control device
    • Patent number 10,539,049
    • Issue date Jan 21, 2020
    • Aisin Seiki Kabushiki Kaisha
    • Yoshiaki Yamakawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable valve timing control device
    • Patent number 10,450,905
    • Issue date Oct 22, 2019
    • Aisin Seiki Kabushiki Kaisha
    • Yoshiaki Yamakawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

  • Information Patent Application

    VARIABLE VALVE TIMING CONTROL DEVICE
    • Publication number 20180274398
    • Publication date Sep 27, 2018
    • AISIN SEIKI KABUSHIKI KAISHA
    • Yoshiaki YAMAKAWA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VALVE OPENING/CLOSING TIMING CONTROL DEVICE
    • Publication number 20180156080
    • Publication date Jun 7, 2018
    • AISIN SEIKI KABUSHIKI KAISHA
    • Yoshiaki YAMAKAWA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VALVE OPENING/CLOSING TIMING CONTROL DEVICE
    • Publication number 20180156079
    • Publication date Jun 7, 2018
    • AISIN SEIKI KABUSHIKI KAISHA
    • Yoshiaki YAMAKAWA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES