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Kenji Katsumata

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Headphone
    • Patent number D823278
    • Issue date Jul 17, 2018
    • Sony Corporation
    • Tomohiro Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Earphone
    • Patent number D701195
    • Issue date Mar 18, 2014
    • Sony Corporation
    • Kenji Katsumata
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Headphone
    • Patent number D695261
    • Issue date Dec 10, 2013
    • Sony Corporation
    • Kenji Katsumata
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Headphone
    • Patent number D669450
    • Issue date Oct 23, 2012
    • Sony Corporation
    • Kenji Katsumata
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Television receiver
    • Patent number D666565
    • Issue date Sep 4, 2012
    • Sony Corporation
    • Daigaku Kumano
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Headphone
    • Patent number D664113
    • Issue date Jul 24, 2012
    • Sony Corporation
    • Kenji Katsumata
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Television receiver
    • Patent number D574345
    • Issue date Aug 5, 2008
    • Sony Corporation
    • Kenji Katsumata
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Television receiver
    • Patent number D571324
    • Issue date Jun 17, 2008
    • Sony Corporation
    • Kenji Katsumata
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Combined charger and infrared ray emitter
    • Patent number D541793
    • Issue date May 1, 2007
    • Sony Corporation
    • Kenji Katsumata
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Speaker box
    • Patent number D540782
    • Issue date Apr 17, 2007
    • Sony Corporation
    • Kenji Katsumata
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Combined disc player, radio receiver and tape recorder
    • Patent number D521974
    • Issue date May 30, 2006
    • Sony Corporation
    • Kenji Katsumata
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Speaker box
    • Patent number D517049
    • Issue date Mar 14, 2006
    • Sony Corporation
    • Kenji Katsumata
    • D14 - Recording, communication, or information retrieval equipment

Patents Applicationslast 30 patents