TREA

Tetsuo Toyoda

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Microphone
    • Patent number 8,605,919
    • Issue date Dec 10, 2013
    • Hosiden Corporation
    • Ryuji Awamura
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Microphone
    • Publication number 20110135122
    • Publication date Jun 9, 2011
    • HOSIDEN CORPORATION
    • Ryuji Awamura
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE