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Isamu Chiba

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Simplified feed circuit for an array antenna device
    • Patent number 6,788,269
    • Issue date Sep 7, 2004
    • Mitsubishi Denki Kabushiki Kaisha
    • Isamu Chiba
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna
    • Patent number 6,768,475
    • Issue date Jul 27, 2004
    • Mitsubishi Denki Kabushiki Kaisha
    • Masataka Ohtsuka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Mobile communication system and communication method performed in t...
    • Patent number 6,711,382
    • Issue date Mar 23, 2004
    • Mitsubishi Denki Kabushiki Kaisha
    • Isamu Chiba
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Antenna device
    • Patent number 6,707,433
    • Issue date Mar 16, 2004
    • Mitsubishi Denki Kabushiki Kaisha
    • Masataka Ohtsuka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Adaptive array antenna device and base station adaptive array anten...
    • Patent number 6,404,387
    • Issue date Jun 11, 2002
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazunari Kihira
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Portable wireless device
    • Patent number 6,405,064
    • Issue date Jun 11, 2002
    • Mitsubishi Denki Kabushiki Kaisha
    • Tsutomu Endo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Composite antenna apparatus
    • Patent number 6,222,505
    • Issue date Apr 24, 2001
    • Mitsubishi Denki Kabushiki Kaisha
    • Tsutomu Endo
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna feeding circuit
    • Patent number 6,204,827
    • Issue date Mar 20, 2001
    • Mitsubishi Denki Kabushiki Kaisha
    • Tsutomu Endo
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna apparatus for portable phones
    • Patent number 6,154,184
    • Issue date Nov 28, 2000
    • Mitsubishi Denki Kabushiki Kaisha
    • Tsutomu Endo
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Mobile satellite communication system
    • Patent number 6,043,776
    • Issue date Mar 28, 2000
    • Mitsubishi Denki Kabushiki Kaisha
    • Isamu Chiba
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Antenna apparatus
    • Patent number 5,966,097
    • Issue date Oct 12, 1999
    • Mitsubishi Denki Kabushiki Kaisha
    • Toru Fukasawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna system
    • Patent number 5,184,140
    • Issue date Feb 2, 1993
    • Mitsubishi Denki Kabushiki Kaisha
    • Kenichi Hariu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method and system for forming desired radiation pattern with array...
    • Patent number 5,081,463
    • Issue date Jan 14, 1992
    • Mitsubishi Denki Kabushiki Kaisha
    • Kenichi Hariu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna system
    • Patent number 4,644,359
    • Issue date Feb 17, 1987
    • Mitsubishi Denki Kabushiki Kaisha
    • Takashi Katagi
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Antenna device
    • Publication number 20030164804
    • Publication date Sep 4, 2003
    • Isamu Chiba
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Antenna device
    • Publication number 20030090433
    • Publication date May 15, 2003
    • Masataka Ohtsuka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Mobile communication system and communication method performed in t...
    • Publication number 20020077153
    • Publication date Jun 20, 2002
    • Mitsubishi Denki Kabushiki Kaisha
    • Isamu Chiba
    • H01 - BASIC ELECTRIC ELEMENTS