TREA

Yoshihiro Kawata

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  • Tokorozawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Synchronizing system in digital communication line
    • Patent number 5,228,035
    • Issue date Jul 13, 1993
    • Iwatsu Electric Co., Ltd.
    • Akira Hirato
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Key telephone system
    • Patent number 5,025,441
    • Issue date Jun 18, 1991
    • Iwatsu Electric Company, Ltd.
    • Masaharu Kamigaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Data circuit-terminating equipment
    • Patent number 4,905,258
    • Issue date Feb 27, 1990
    • Iwatsu Electric Co., Ltd.
    • Toshimichi Shimatani
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Data circuit-terminating equipment
    • Patent number 4,815,099
    • Issue date Mar 21, 1989
    • Iwatsu Electric Co., Ltd.
    • Toshimichi Shimatani
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Digital synchronizing circuit
    • Patent number 4,759,040
    • Issue date Jul 19, 1988
    • Iwatsu Electric Co., Ltd.
    • Yoshihiro Kawata
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Data transmission circuit
    • Patent number 4,694,470
    • Issue date Sep 15, 1987
    • Iwatsu Electric Co. Ltd.
    • Toshimichi Shimatani
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Subscriber's circuit for time division switching system
    • Patent number 4,592,046
    • Issue date May 27, 1986
    • Iwasaki Tsushinki Kabushiki Kaisha
    • Yoshihiro Kawata
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Key telephone transmission system
    • Patent number 4,583,214
    • Issue date Apr 15, 1986
    • Iwasaki Tsushinki Kabushiki Kaisha
    • Hiroyuki Miyashita
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE