TREA

Tomoya Maruyama

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electret
    • Patent number 11,558,694
    • Issue date Jan 17, 2023
    • Denso Corporation
    • Yoshihiro Kozawa
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRET
    • Publication number 20210185451
    • Publication date Jun 17, 2021
    • DENSO CORPORATION
    • Yoshihiro Kozawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE