TREA

Takashi Katagi

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Two-frequency antenna, multiple-frequency antenna, two- or multiple...
    • Patent number 6,529,170
    • Issue date Mar 4, 2003
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazushi Nishizawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Multi-frequency array antenna
    • Patent number 6,426,730
    • Issue date Jul 30, 2002
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazushi Nishizawa
    • 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 5,784,034
    • Issue date Jul 21, 1998
    • Mitsubishi Denki Kabushiki Kaisha
    • Yoshihiko Konishi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Omnidirectional slot antenna
    • Patent number 5,717,410
    • Issue date Feb 10, 1998
    • Mitsubishi Denki Kabushiki Kaisha
    • Hiroyuki Ohmine
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna device having a band pass filter
    • Patent number 5,684,492
    • Issue date Nov 4, 1997
    • Mitsubishi Denki Kabushiki Kaisha
    • Kenichi Kagoshima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Antenna apparatus and antenna system
    • Patent number 5,592,185
    • Issue date Jan 7, 1997
    • Mitsubishi Denki Kabushiki Kaisha
    • Yasuhiro Itabashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Inverted F antenna with non-contact feeding
    • Patent number 5,434,579
    • Issue date Jul 18, 1995
    • Mitsubishi Denki Kabushiki Kaisha
    • Kenichi Kagoshima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Array antenna mounted on spacecrafts
    • Patent number 5,430,451
    • Issue date Jul 4, 1995
    • National Space Development Agency of Japan
    • Toneo Kawanishi
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Antenna mirror-surface measuring system
    • Patent number 5,374,934
    • Issue date Dec 20, 1994
    • Mitsubishi Denki Kabushiki Kaisha
    • Koryo Miura
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Multi-layer array antenna
    • Patent number 5,262,791
    • Issue date Nov 16, 1993
    • Mitsubishi Denki Kabushiki Kaisha
    • Yoshiaki Tsuda
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna system
    • Patent number 5,257,030
    • Issue date Oct 26, 1993
    • Mitsubishi Denki Kabushiki Kaisha
    • Toshihiko Aoki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method of measuring the null angle of a monopulse antenna and appar...
    • Patent number 5,181,040
    • Issue date Jan 19, 1993
    • Mitsubishi Denki Kabushiki Kaisha
    • Masato Inoue
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Antenna system
    • Patent number 5,075,692
    • Issue date Dec 24, 1991
    • Mitsubishi Denki Kabushiki Kaisha
    • Takayoshi Huruno
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna system
    • Patent number 4,994,813
    • Issue date Feb 19, 1991
    • Mitsubishi Denki Kabushiki Denki
    • Kuniaki Shiramatsu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Conformal array antenna
    • Patent number 4,922,257
    • Issue date May 1, 1990
    • Mitsubishi Denki Kabushiki Kaisha
    • Jun Saito
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna device
    • Patent number 4,827,270
    • Issue date May 2, 1989
    • Mitsubishi Denki Kabushiki Kaisha
    • Shigeo Udagawa
    • 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
  • Information Patent Grant

    Dual reflector antenna system
    • Patent number 4,618,866
    • Issue date Oct 21, 1986
    • Mitsubishi Denki Kabushiki Kaisha
    • Shigeru Makino
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna system with plural horn feeds
    • Patent number 4,559,540
    • Issue date Dec 17, 1985
    • Mitsubishi Denki Kabushiki Kaisha
    • Shinichi Betsudan
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Reflecting mirror antenna unit with diverse curvature
    • Patent number 4,506,270
    • Issue date Mar 19, 1985
    • Mitsubishi Denki Kabushiki Kaisha
    • Takashi Katagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna system
    • Patent number 4,500,882
    • Issue date Feb 19, 1985
    • Mitsubishi Denki Kabushiki Kaisha
    • Takashi Katagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna system with plural horn feeds
    • Patent number 4,462,034
    • Issue date Jul 24, 1984
    • Mitsubishi Denki Kabushiki Kaisha
    • Shinichi Betsudan
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Dual reflector antenna
    • Patent number 4,356,494
    • Issue date Oct 26, 1982
    • Mitsubishi Denki Kabushiki Kaisha
    • Takashi Katagi
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents