TREA

Kazue Sato

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Patents Grantslast 30 patents

  • Information Patent Grant

    Controller, recording device and menu display method
    • Patent number 8,351,760
    • Issue date Jan 8, 2013
    • Panasonic Corporation
    • Shiro Iwasaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 6,305,491
    • Issue date Oct 23, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Mikio Iwasa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Electro-mechanical-acoustic transducing device
    • Patent number 6,259,935
    • Issue date Jul 10, 2001
    • Matsushita Electrical Industrial Co., Ltd.
    • Shuji Saiki
    • G08 - SIGNALLING
  • Information Patent Grant

    Thin speaker having an enclosure with an open portion and a closed...
    • Patent number 5,073,946
    • Issue date Dec 17, 1991
    • Matsushita Electric Industrial Co., Ltd.
    • Katsuaki Satoh
    • 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

    Loudspeaker system
    • Patent number 4,930,596
    • Issue date Jun 5, 1990
    • Matsushita Electric Industrial Co., Ltd.
    • Syuji Saiki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker system
    • Patent number 4,893,695
    • Issue date Jan 16, 1990
    • Matsushita Electric Industrial Co., Ltd.
    • Tadashi Tamura
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Electrodynamic loudspeaker
    • Patent number 4,426,556
    • Issue date Jan 17, 1984
    • Matsushita Electric Industrial Co., Ltd.
    • Shuji Saiki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Acoustic diaphragm for speakers and method of producing the same
    • Patent number 4,300,655
    • Issue date Nov 17, 1981
    • Matsushita Electric Industrial Co., Ltd.
    • Naraji Sakamoto
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sealed headphone
    • Patent number 4,239,945
    • Issue date Dec 16, 1980
    • Matsushita Electric Industrial Co., Ltd.
    • Nobuhisa Atoji
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphone with two resonant peaks for simulating loudspeaker reprod...
    • Patent number 4,211,898
    • Issue date Jul 8, 1980
    • Matsushita Electric Industrial Co., Ltd.
    • Nobuhisa Atoji
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    CONTROLLER, RECORDING DEVICE AND MENU DISPLAY METHOD
    • Publication number 20100195979
    • Publication date Aug 5, 2010
    • Shiro IWASAKI
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    SPEAKER
    • Publication number 20010011615
    • Publication date Aug 9, 2001
    • MIKIO IWASA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE