TREA

Kazunori Kakiyama

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  • Yokohama-shi, Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Headphone
    • Patent number 10,681,461
    • Issue date Jun 9, 2020
    • ALPHATHETA CORPORATION
    • Ryusuke Fukushima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    HEADPHONE
    • Publication number 20190238984
    • Publication date Aug 1, 2019
    • Pioneer DJ CORPORATION
    • Ryusuke Fukushima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE