TREA

Takahiro Hayakawa

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Speaker system
    • Patent number 8,315,401
    • Issue date Nov 20, 2012
    • Panasonic Corporation
    • Takahiro Hayakawa
    • B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    SPEAKER SYSTEM
    • Publication number 20100272271
    • Publication date Oct 28, 2010
    • PANASONIC CORPORATION
    • Takahiro Hayakawa
    • B60 - VEHICLES IN GENERAL