TREA

Akira TAMADERA

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Earphone
    • Patent number 10,477,295
    • Issue date Nov 12, 2019
    • Onkyo Corporation
    • Takashi Ouchi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphones and speaker unit
    • Patent number 10,419,845
    • Issue date Sep 17, 2019
    • Onkyo Corporation
    • Shun Muramoto
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    EARPHONE
    • Publication number 20190261078
    • Publication date Aug 22, 2019
    • Onkyo Corporation
    • Takashi OUCHI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONES AND SPEAKER UNIT
    • Publication number 20180310093
    • Publication date Oct 25, 2018
    • Onkyo Corporation
    • Shun MURAMOTO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE