TREA

Haruhiko Kohyama

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  • Hyogo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Residual magnetic flux determining apparatus
    • Patent number 8,093,885
    • Issue date Jan 10, 2012
    • Mitsubishi Electric Corporation
    • Hiroyuki Tsutada
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gas circuit breaker
    • Patent number 8,071,905
    • Issue date Dec 6, 2011
    • Mitsubishi Electric Corporation
    • Yuji Yoshitomo
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Gas-circuit breaker
    • Patent number 8,030,590
    • Issue date Oct 4, 2011
    • Mitsubishi Electric Corporation
    • Daisuke Yoshida
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Controlled switching device
    • Patent number 7,902,696
    • Issue date Mar 8, 2011
    • Mitsubishi Electric Corporation
    • Hiroyuki Tsutada
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Puffer-type gas blast circuit breaker
    • Patent number 7,763,821
    • Issue date Jul 27, 2010
    • Mitsubishi Electric Corporation
    • Yuji Yoshitomo
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gas insulated switchgear
    • Patent number 7,323,652
    • Issue date Jan 29, 2008
    • Mitsubishi Denki Kabushiki Kaisha
    • Daisuke Yoshida
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Phase control switching device
    • Patent number 7,259,947
    • Issue date Aug 21, 2007
    • Mitsubishi Denki Kabushiki Kaisha
    • Sadayuki Kinoshita
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Transformer inrush current elimination system
    • Patent number 7,095,139
    • Issue date Aug 22, 2006
    • Mitsubishi Denki Kabushiki Kaisha
    • Hiroyuki Tsutada
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Phase control switch apparatus
    • Patent number 6,493,203
    • Issue date Dec 10, 2002
    • Mitsubishi Denki Kabushiki Kaisha
    • Hiroki Ito
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Synchronous switching apparatus for use with a multiple phase power...
    • Patent number 6,392,390
    • Issue date May 21, 2002
    • Mitsubishi Denki Kabushiki Kaisha
    • Hiroki Ito
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Phase control switching system
    • Patent number 6,172,863
    • Issue date Jan 9, 2001
    • Mitsubishi Denki Kabushiki Kaisha
    • Hiroki Ito
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Switch
    • Patent number 5,514,844
    • Issue date May 7, 1996
    • Mitsubishi Denki Kabushiki Kaisha
    • Suenobu Hamano
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    RESIDUAL MAGNETIC FLUX DETERMINING APPARATUS
    • Publication number 20100013470
    • Publication date Jan 21, 2010
    • Mitsubishi Electric Corporation
    • Hiroyuki Tsutada
    • G01 - MEASURING TESTING
  • Information Patent Application

    CONTROLLED SWITCHING DEVICE
    • Publication number 20080269952
    • Publication date Oct 30, 2008
    • MITSUBISHI ELECTRIC CORPORATION
    • Hiroyuki TSUTADA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Gas circuit breaker
    • Publication number 20080257865
    • Publication date Oct 23, 2008
    • Mitsubishi Electric Corporation
    • Yuji Yoshitomo
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Gas-circuit breaker
    • Publication number 20080203061
    • Publication date Aug 28, 2008
    • Mitsubishi Electric Corporation
    • Daisuke Yoshida
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Puffer-Type Gas Blast Circuit Breaker
    • Publication number 20070262053
    • Publication date Nov 15, 2007
    • Mitsubishi Electric Corporation
    • Yuji Yoshitomo
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Gas insulated switchgear
    • Publication number 20060243091
    • Publication date Nov 2, 2006
    • Mitsubishi Denki Kabushiki Kaisha
    • Daisuke Yoshida
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Phase control switching device
    • Publication number 20060018068
    • Publication date Jan 26, 2006
    • TMT&D Corporation
    • Sadayuki Kinoshita
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Transformer inrush current elimination system
    • Publication number 20040124814
    • Publication date Jul 1, 2004
    • Mitsubishi Denki Kabushiki Kaisha
    • Hiroyuki Tsutada
    • G05 - CONTROLLING REGULATING