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Katsunori Kuboyama

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  • Kawasaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Circuit breaker and terminal cover
    • Patent number 7,170,020
    • Issue date Jan 30, 2007
    • Fuji Electric FA Components & Systems Co., Ltd.
    • Hisao Kawata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Overload/open-phase tripping device for circuit breaker
    • Patent number 6,940,374
    • Issue date Sep 6, 2005
    • Fuji Electric FA Components & Systems Co., Ltd.
    • Isamu Nagahiro
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker
    • Patent number 6,897,760
    • Issue date May 24, 2005
    • Fuji Electric Co., Ltd.
    • Hisao Kawata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker
    • Patent number 6,897,748
    • Issue date May 24, 2005
    • Fuji Electric Co., Ltd.
    • Hideto Yamagata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker
    • Patent number 6,819,206
    • Issue date Nov 16, 2004
    • Fuji Electric Co., Ltd.
    • Takeshi Emura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker
    • Patent number 6,800,822
    • Issue date Oct 5, 2004
    • Fuji Electric Co., Ltd.
    • Yoshinobu Hamada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Protective switch
    • Patent number 6,642,820
    • Issue date Nov 4, 2003
    • Fuji Electric Co., Ltd.
    • Takeshi Emura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Overload tripping device for circuit breaker
    • Patent number 6,621,403
    • Issue date Sep 16, 2003
    • Fuji Electric Co., Ltd.
    • Isamu Nagahiro
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker
    • Patent number 6,606,239
    • Issue date Aug 12, 2003
    • Fuji Electric Co., Ltd.
    • Tatsunori Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Switch mounting structure
    • Patent number 6,600,116
    • Issue date Jul 29, 2003
    • Fuji Electric Co., Ltd.
    • Hisao Kawata
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Instantaneous-tripping circuit breaker
    • Patent number 6,577,215
    • Issue date Jun 10, 2003
    • Fuji Electric Co., Ltd.
    • Koji Nomura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker
    • Patent number 6,566,618
    • Issue date May 20, 2003
    • Fuji Electric Co., Ltd.
    • Yoshinobu Hamada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker
    • Patent number 6,548,769
    • Issue date Apr 15, 2003
    • Fuji Electric Co., Ltd.
    • Koji Nomura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker with shift guide
    • Patent number 6,512,434
    • Issue date Jan 28, 2003
    • Fuji Electric Co., Ltd.
    • Katsunori Kuboyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Manual motor starter
    • Patent number D468687
    • Issue date Jan 14, 2003
    • Fuji Electric Co., Ltd.
    • Yoshinobu Hamada
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Circuit breaker
    • Patent number 6,456,176
    • Issue date Sep 24, 2002
    • Fuji Electric Co., Ltd.
    • Takumi Fujihira
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Terminal unit for multipolar switch
    • Patent number 6,392,514
    • Issue date May 21, 2002
    • Fuji Electric Co., Ltd.
    • Hisao Kawata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Overcurrent-tripping device for circuit breaker
    • Patent number 6,310,528
    • Issue date Oct 30, 2001
    • Fuji Electric Co., Ltd.
    • Katsunori Kuboyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Terminal structure of switch
    • Patent number 6,255,608
    • Issue date Jul 3, 2001
    • Fuji Electric Co., Ltd.
    • Hisao Kawata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Make-and-break mechanism for circuit breaker
    • Patent number 6,229,414
    • Issue date May 8, 2001
    • Fuji Electric Co., Ltd.
    • Kentaro Toyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker including bridging contact with magnetic structure
    • Patent number 6,103,986
    • Issue date Aug 15, 2000
    • Fuji Electric Co., Ltd.
    • Koji Asakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker
    • Patent number 5,901,025
    • Issue date May 4, 1999
    • Fuji Electric Co., Ltd.
    • Tatsunori Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Overcurrent trip device
    • Patent number 5,825,602
    • Issue date Oct 20, 1998
    • Fuji Electric Co., Ltd.
    • Hiroaki Tosaka
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Circuit breaker with arc quenching device and vent
    • Patent number 5,589,672
    • Issue date Dec 31, 1996
    • Fuji Electric Co., Ltd.
    • Naoshi Uchida
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Movable contactor device in circuit breaker
    • Patent number 5,566,818
    • Issue date Oct 22, 1996
    • Fuji Electric Co., Ltd.
    • Katsunori Kuboyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit breaker with insulation device
    • Patent number 5,548,258
    • Issue date Aug 20, 1996
    • Fuji Electric Co., Ltd.
    • Katsunori Kuboyama
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Circuit breaker and terminal cover
    • Publication number 20050280973
    • Publication date Dec 22, 2005
    • FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    • Hisao Kawata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    OVERLOAD/OPEN-PHASE TRIPPING DEVICE FOR CIRCUIT BREAKER
    • Publication number 20050168305
    • Publication date Aug 4, 2005
    • FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    • Isamu Nagahiro
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Terminal device of switching device
    • Publication number 20050164564
    • Publication date Jul 28, 2005
    • FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    • Hisao Kawata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Alarm output device for circuit breaker
    • Publication number 20050062564
    • Publication date Mar 24, 2005
    • Yoshinobu Hamada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    External auxiliary switching unit for circuit breaker
    • Publication number 20050007222
    • Publication date Jan 13, 2005
    • Takeshi Emura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Circuit breaker
    • Publication number 20040056750
    • Publication date Mar 25, 2004
    • Hisao Kawata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Circuit breaker
    • Publication number 20040008098
    • Publication date Jan 15, 2004
    • Takeshi Emura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Circuit breaker
    • Publication number 20030234710
    • Publication date Dec 25, 2003
    • Hideto Yamagata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Circuit breaker
    • Publication number 20030217912
    • Publication date Nov 27, 2003
    • Yoshinobu Hamada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Circuit breaker
    • Publication number 20030086233
    • Publication date May 8, 2003
    • Tatsunori Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Protective switch
    • Publication number 20030024800
    • Publication date Feb 6, 2003
    • Takeshi Emura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Switch mounting structure
    • Publication number 20020096422
    • Publication date Jul 25, 2002
    • Hisao Kawata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Overload tripping device for circuit breaker
    • Publication number 20020063619
    • Publication date May 30, 2002
    • Isamu Nagahiro
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Circuit breaker
    • Publication number 20020063049
    • Publication date May 30, 2002
    • Yoshinobu Hamada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Instantaneous-tripping circuit breaker
    • Publication number 20020063615
    • Publication date May 30, 2002
    • Koji Nomura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Circuit breaker
    • Publication number 20010030118
    • Publication date Oct 18, 2001
    • Koji Nomura
    • H01 - BASIC ELECTRIC ELEMENTS