TREA

Takayoshi Yamasaki

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electronic equipment
    • Patent number 7,851,718
    • Issue date Dec 14, 2010
    • Panasonic Corporation
    • Seiji Shibuya
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Speaker module and apparatus using this
    • Patent number 7,218,743
    • Issue date May 15, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Masahide Sumiyama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Acoustic transducer
    • Patent number 6,580,800
    • Issue date Jun 17, 2003
    • Matsushita Electric Industrial Co., Ltd.
    • Takayoshi Yamasaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRONIC EQUIPMENT
    • Publication number 20080237013
    • Publication date Oct 2, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Seiji Shibuya
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Speaker module and appratus using this
    • Publication number 20050271232
    • Publication date Dec 8, 2005
    • Masahide Sumiyama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE