TREA

Masayoshi Sugiyama

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  • Shizuoka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Earphone
    • Patent number 7,551,748
    • Issue date Jun 23, 2009
    • Star Micronics Co., Ltd.
    • Shotaro Kamo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Earphone
    • Publication number 20050226453
    • Publication date Oct 13, 2005
    • STAR MICRONICS CO., LTD.
    • Shotaro Kamo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE