TREA

Toshimichi Shimatani

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  • Fuchu, JP
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Patents Grantslast 30 patents

  • 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

    Time division multiplex data transmission method and apparatus
    • Patent number 4,805,165
    • Issue date Feb 14, 1989
    • Iwatsu Electric Co., Ltd.
    • Masataka Kawamura
    • 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