TREA

Masaaki Yamabayashi

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  • Tsuyama-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Antenna for portable cellular telephone
    • Patent number 7,180,453
    • Issue date Feb 20, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Yoshinobu Nakagawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Mobile radio antenna
    • Patent number 6,177,911
    • Issue date Jan 23, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Naoki Yuda
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Helical coil, method of producing same and helical antenna using same
    • Patent number 6,147,661
    • Issue date Nov 14, 2000
    • Matsushita Electric Industrial Co., Ltd.
    • Yoshinobu Nakagawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Mobile radio antenna
    • Patent number 5,969,690
    • Issue date Oct 19, 1999
    • Matsushita Electric Industrial Co., Ltd.
    • Masaaki Yamabayashi
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Antenna for portable cellular telephone
    • Publication number 20050225488
    • Publication date Oct 13, 2005
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Yoshinobu Nakagawa
    • H01 - BASIC ELECTRIC ELEMENTS