Ryuji Oyama

Person

  • Yamaguchi, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Antenna with built-in filter

    • Patent number 7,180,473
    • Issue date Feb 20, 2007
    • Yokowo Co., Ltd.
    • Ryo Horie
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Dielectric antenna module

    • Patent number 7,109,948
    • Issue date Sep 19, 2006
    • Ube Industries, Ltd.
    • Ryuji Oyama
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Multiplexer

    • Patent number 6,927,648
    • Issue date Aug 9, 2005
    • Ube Industries, Ltd.
    • Hiroshi Ichikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna apparatus and communication apparatus using the same

    • Patent number 6,911,942
    • Issue date Jun 28, 2005
    • Ube Industries, Ltd.
    • Koichi Fukuda
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Semiconductor circuit

    • Publication number 20060158257
    • Publication date Jul 20, 2006
    • UBE INDUSTRIES, LTD.
    • Masahiro Fujimoto
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Dielectric antenna module

    • Publication number 20050017902
    • Publication date Jan 27, 2005
    • Ryuji Oyama
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Antenna incorporating filter

    • Publication number 20040070538
    • Publication date Apr 15, 2004
    • Ryo Horie
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Antenna apparatus and communication apparatus using the same

    • Publication number 20040066337
    • Publication date Apr 8, 2004
    • Koichi Fukuda
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Multiplexer

    • Publication number 20040046621
    • Publication date Mar 11, 2004
    • Shinji Furuya
    • H03 - BASIC ELECTRONIC CIRCUITRY