TREA

Kenji Hatano

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Plug
    • Patent number 7,997,939
    • Issue date Aug 16, 2011
    • SMK Corporation
    • Taku Akaiwa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Earphone
    • Patent number D606049
    • Issue date Dec 15, 2009
    • SMK Corporation
    • Takeshi Matsuda
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Earphone
    • Patent number D599785
    • Issue date Sep 8, 2009
    • SMK Corporation
    • Takeshi Matsuda
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Pair of earphones
    • Patent number D598010
    • Issue date Aug 11, 2009
    • SMK Corporation
    • Takeshi Matsuda
    • D14 - Recording, communication, or information retrieval equipment

Patents Applicationslast 30 patents

  • Information Patent Application

    PLUG
    • Publication number 20110136392
    • Publication date Jun 9, 2011
    • SMK Corporation
    • Taku AKAIWA
    • H01 - BASIC ELECTRIC ELEMENTS