TREA

Tohoru Tamagawa

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  • Machida, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gas laser oscillator
    • Patent number 5,454,003
    • Issue date Sep 26, 1995
    • Kabushiki Kaisha Toshiba
    • Takaaki Murata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electrodes of vacuum switch
    • Patent number 4,698,467
    • Issue date Oct 6, 1987
    • Kabushiki Kaisha Toshiba
    • Eiji Kaneko
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    DC Circuit breaker
    • Patent number 4,458,121
    • Issue date Jul 3, 1984
    • Tokyo Shibaura Denki Kabushiki Kaisha
    • Satoru Yanabu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    DC Circuit breaker apparatus
    • Patent number 4,442,469
    • Issue date Apr 10, 1984
    • Tokyo Shibaura Denki Kabushiki Kaisha
    • Satoru Yanabu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Hybrid-type interrupting apparatus
    • Patent number 4,434,332
    • Issue date Feb 28, 1984
    • Tokyo Shibaura Denki Kabushiki Kaisha
    • Satoru Yanabu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum interrupter
    • Patent number 4,246,458
    • Issue date Jan 20, 1981
    • Tokyo Shibaura Denki Kabushiki Kaisha
    • Satoru Yanabu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit interrupting apparatus for use in direct current circuits
    • Patent number 4,110,806
    • Issue date Aug 29, 1978
    • Tokyo Shibaura Denki Kabushiki Kaisha
    • Minoru Murano
    • H01 - BASIC ELECTRIC ELEMENTS