TREA

Kenji Ishibashi

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Speaker cover
    • Patent number 9,695,610
    • Issue date Jul 4, 2017
    • Yamaha Corporation
    • Shinya Sonoda
    • E04 - BUILDING
  • Information Patent Grant

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    • Patent number D763231
    • Issue date Aug 9, 2016
    • Yamaha Corporation
    • Shinya Sonoda
    • D14 - Recording, communication, or information retrieval equipment

Patents Applicationslast 30 patents

  • Information Patent Application

    SPEAKER COVER
    • Publication number 20160069100
    • Publication date Mar 10, 2016
    • Yamaha Corporation
    • Shinya SONODA
    • E04 - BUILDING