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Yasuaki Ogasawara

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Patents Grantslast 30 patents

  • Information Patent Grant

    Speaker device
    • Patent number 8,290,198
    • Issue date Oct 16, 2012
    • Pioneer Corporation
    • Yasuaki Ogasawara
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    SPEAKER DEVICE
    • Publication number 20110051988
    • Publication date Mar 3, 2011
    • Pioneer Corporation
    • Yasuaki Ogasawara
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE