TREA

Kosaku Murata

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Patents Grantslast 30 patents

  • Information Patent Grant

    Speaker system
    • Patent number 6,739,424
    • Issue date May 25, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Takashi Ogura
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker system with image projection screen
    • Patent number 5,025,474
    • Issue date Jun 18, 1991
    • Matsushita Electric Industrial Co., Ltd.
    • Tsuneo Tanaka
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Diaphragm for acoustic equipment
    • Patent number 4,273,900
    • Issue date Jun 16, 1981
    • Matsushita Electric Industrial Co., Ltd.
    • Kosaku Murata
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Speaker diaphragm molded from poly-biphenol phthalate type resin film
    • Patent number 4,173,701
    • Issue date Nov 6, 1979
    • Matsushita Electric Industrial Co., Ltd.
    • Kosaku Murata
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Speaker system
    • Publication number 20020134613
    • Publication date Sep 26, 2002
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Takashi Ogura
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE