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Ryuichi Yamada

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  • Aki-gun, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sound generation device for vehicle
    • Patent number 11,981,259
    • Issue date May 14, 2024
    • Mazda Motor Corporation
    • Yukifusa Hattori
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Vehicle sound generation device
    • Patent number 11,763,795
    • Issue date Sep 19, 2023
    • Mazda Motor Corporation
    • Yukifusa Hattori
    • B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    VEHICLE SOUND GENERATION DEVICE
    • Publication number 20220319491
    • Publication date Oct 6, 2022
    • MAZDA MOTOR CORPORATION
    • Yukifusa HATTORI
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    SOUND GENERATION DEVICE FOR VEHICLE
    • Publication number 20220297598
    • Publication date Sep 22, 2022
    • MAZDA MOTOR CORPORATION
    • Yukifusa Hattori
    • B60 - VEHICLES IN GENERAL