TREA

Yukio Okamoto

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  • Aichi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Loudspeaker
    • Patent number 8,041,069
    • Issue date Oct 18, 2011
    • Panasonic Corporation
    • Osamu Funahashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker
    • Patent number 7,443,996
    • Issue date Oct 28, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Osamu Funahashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker and method of manufacturing the same
    • Patent number 7,324,659
    • Issue date Jan 29, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Osamu Funahashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 7,209,570
    • Issue date Apr 24, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Osamu Funahashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    LOUDSPEAKER
    • Publication number 20090022355
    • Publication date Jan 22, 2009
    • Osamu Funahashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Loudspeaker
    • Publication number 20060215871
    • Publication date Sep 28, 2006
    • Osamu Funahashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker and method of manufacturing the same
    • Publication number 20050078849
    • Publication date Apr 14, 2005
    • Osamu Funahashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker
    • Publication number 20030185415
    • Publication date Oct 2, 2003
    • Osamu Funahashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE