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Hiroko TSUTSUMI

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Patents Grantslast 30 patents

  • Information Patent Grant

    Loudspeaker
    • Patent number 9,756,426
    • Issue date Sep 5, 2017
    • PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    • Hiroko Tsutsumi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 8,135,164
    • Issue date Mar 13, 2012
    • Panasonic Corporation
    • Shoji Tanaka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    LOUDSPEAKER
    • Publication number 20160219371
    • Publication date Jul 28, 2016
    • Panasonic Intellectual Property Management Co., Ltd.
    • HIROKO TSUTSUMI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20080159583
    • Publication date Jul 3, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Shoji TANAKA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE