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Ayumu Morita

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  • Hitachi-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Railroad vehicle
    • Patent number 9,919,722
    • Issue date Mar 20, 2018
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Kenji Tsuchiya
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Circuit breaker and circuit breaker operating method
    • Patent number 9,899,172
    • Issue date Feb 20, 2018
    • Hitachi, Ltd.
    • Hajime Urai
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Switch
    • Patent number 9,818,562
    • Issue date Nov 14, 2017
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Takashi Sato
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Switchgear
    • Patent number 9,520,699
    • Issue date Dec 13, 2016
    • Hitachi, Ltd.
    • Hajime Urai
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching unit or switching gear
    • Patent number 9,437,380
    • Issue date Sep 6, 2016
    • Hitachi, Ltd.
    • Miki Yamazaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Operating device or vacuum switch
    • Patent number 9,378,913
    • Issue date Jun 28, 2016
    • Hitachi, Ltd.
    • Takashi Sato
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Switchgear and opening and closing method thereof
    • Patent number 9,318,285
    • Issue date Apr 19, 2016
    • Hitachi, Ltd.
    • Takashi Sato
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Resistor, method of assembling the same, and switchgear
    • Patent number 9,312,669
    • Issue date Apr 12, 2016
    • Hitachi, Ltd.
    • Ayumu Morita
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Grease for electrical contact and slide electricity structure, powe...
    • Patent number 9,238,784
    • Issue date Jan 19, 2016
    • Hitachi, Ltd.
    • Takashi Sato
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Actuator for contactor
    • Patent number 9,142,371
    • Issue date Sep 22, 2015
    • Hitachi, Ltd.
    • Takamitsu Hae
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Switchgear
    • Patent number 8,946,581
    • Issue date Feb 3, 2015
    • Hitachi, Ltd.
    • Masato Yabu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switch unit and switchgear equipped therewith
    • Patent number 8,872,054
    • Issue date Oct 28, 2014
    • Hitachi, Ltd.
    • Miki Yamazaki
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Interlock device of draw-out type circuit breaker, draw-out type ci...
    • Patent number 8,796,570
    • Issue date Aug 5, 2014
    • Hitachi, Ltd.
    • Masato Kobayashi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switchgear
    • Patent number 8,791,379
    • Issue date Jul 29, 2014
    • Hitachi, Ltd.
    • Shuichi Kikukawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switchgear and method for operating switchgear
    • Patent number 8,710,388
    • Issue date Apr 29, 2014
    • Hitachi, Ltd.
    • Tomoaki Utsumi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switchgear
    • Patent number 8,576,545
    • Issue date Nov 5, 2013
    • Hitachi, Ltd.
    • Keiichi Takahashi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Air circuit breaker
    • Patent number 8,570,121
    • Issue date Oct 29, 2013
    • Hitachi, Ltd.
    • Masashi Sawada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum insulated switchgear
    • Patent number 8,373,082
    • Issue date Feb 12, 2013
    • Hitachi, Ltd.
    • Kenji Tsuchiya
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Vacuum insulated switchgear
    • Patent number 8,304,679
    • Issue date Nov 6, 2012
    • Hitachi, Ltd.
    • Kenji Tsuchiya
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electrode for switch and vacuum switch, and method of manufacturing...
    • Patent number 8,294,057
    • Issue date Oct 23, 2012
    • Hitachi, Ltd.
    • Miki Yamazaki
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Vacuum switchgear
    • Patent number 8,247,725
    • Issue date Aug 21, 2012
    • Hitachi, Ltd.
    • Ayumu Morita
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum switch
    • Patent number 8,237,076
    • Issue date Aug 7, 2012
    • Hitachi, Ltd.
    • Takashi Sato
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum insulated switch and vacuum insulated switchgear
    • Patent number 8,049,130
    • Issue date Nov 1, 2011
    • Hitachi, Ltd.
    • Masato Kobayashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum insulated switchgear
    • Patent number 8,035,054
    • Issue date Oct 11, 2011
    • Hitachi, Ltd.
    • Hiroyuki Ozawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Circuit breaker and opening and closing method thereof
    • Patent number 7,911,303
    • Issue date Mar 22, 2011
    • Hitachi, Ltd.
    • Ayumu Morita
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum switchgear
    • Patent number 7,902,479
    • Issue date Mar 8, 2011
    • Hitachi, Ltd.
    • Kenji Tsuchiya
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum insulated switchgear
    • Patent number 7,902,480
    • Issue date Mar 8, 2011
    • Hitachi, Ltd.
    • Kenji Tsuchiya
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Vacuum insulated switchgear
    • Patent number 7,790,998
    • Issue date Sep 7, 2010
    • Hitachi, Ltd.
    • Kenji Tsuchiya
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switchgear
    • Patent number 7,683,286
    • Issue date Mar 23, 2010
    • Hitachi, Ltd.
    • Takashi Sato
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Switchgear
    • Patent number 7,679,023
    • Issue date Mar 16, 2010
    • Hitachi, Ltd.
    • Takashi Sato
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Electrical Contact for Vacuum Interrupter and Process for Producing...
    • Publication number 20160141126
    • Publication date May 19, 2016
    • Hitachi, Ltd
    • Shigeru KIKUCHI
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    Railroad Vehicle
    • Publication number 20160001798
    • Publication date Jan 7, 2016
    • Hitachi, Ltd
    • Kenji TSUCHIYA
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Operating Device or Vacuum Switch
    • Publication number 20150318132
    • Publication date Nov 5, 2015
    • Hitachi, Ltd
    • Takashi SATO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SWITCH
    • Publication number 20150206676
    • Publication date Jul 23, 2015
    • Hitachi, Ltd
    • Takashi Sato
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Operation Device, Vacuum Opening/Closing Device, and Method for Ass...
    • Publication number 20150198260
    • Publication date Jul 16, 2015
    • Hitachi, Ltd
    • Takamitsu Hae
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Switchgear
    • Publication number 20150131207
    • Publication date May 14, 2015
    • Hitachi, Ltd
    • Hajime Urai
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    SWITCHGEAR AND SWITCHGEAR ASSEMBLING METHOD
    • Publication number 20150124376
    • Publication date May 7, 2015
    • Hitachi, Ltd
    • Ayumu Morita
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Switching Unit or Switching Gear
    • Publication number 20150102013
    • Publication date Apr 16, 2015
    • Hitachi, Ltd
    • Miki Yamazaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Gas Circuit Breaker
    • Publication number 20150091677
    • Publication date Apr 2, 2015
    • Hitachi, Ltd
    • Hajime Urai
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Vacuum Switch
    • Publication number 20150060409
    • Publication date Mar 5, 2015
    • Hitachi, Ltd
    • Shinsuke Iitsuka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Circuit Breaker and Circuit Breaker Operating Method
    • Publication number 20150043121
    • Publication date Feb 12, 2015
    • Hitachi, Ltd
    • Hajime Urai
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ACTUATOR FOR CONTACTOR
    • Publication number 20140361858
    • Publication date Dec 11, 2014
    • Hitachi, Ltd
    • Takamitsu HAE
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SWITCHGEAR AND OPENING AND CLOSING METHOD THEREOF
    • Publication number 20140360853
    • Publication date Dec 11, 2014
    • Hitachi, Ltd
    • Takashi SATO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Electrical Contacts, Manufacturing Methods Thereof, Electrodes, Vac...
    • Publication number 20140076852
    • Publication date Mar 20, 2014
    • Hitachi, Ltd
    • Shigeru KIKUCHI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    RESISTOR, METHOD OF ASSEMBLING THE SAME, AND SWITCHGEAR
    • Publication number 20130335887
    • Publication date Dec 19, 2013
    • Ayumu MORITA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Switchgear
    • Publication number 20130240485
    • Publication date Sep 19, 2013
    • Hitachi, Ltd
    • Masato YABU
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Vacuum Valve and Switchgear Equipped with Said Vacuum Valve
    • Publication number 20130001200
    • Publication date Jan 3, 2013
    • Hitachi Ltd.
    • Ayumu Morita
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Grease for Electrical Contact and Slide Electricity Structure, Powe...
    • Publication number 20120276755
    • Publication date Nov 1, 2012
    • NOK Klueber Co., Ltd.
    • Takashi SATO
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    INTERLOCK DEVICE OF DRAW-OUT TYPE CIRCUIT BREAKER, DRAW-OUT TYPE CI...
    • Publication number 20120228096
    • Publication date Sep 13, 2012
    • Hitachi, Ltd.
    • Masato KOBAYASHI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SWITCHGEAR
    • Publication number 20120152716
    • Publication date Jun 21, 2012
    • Hitachi, Ltd.
    • Shuichi KIKUKAWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    SWITCH UNIT AND SWITCHGEAR EQUIPPED THEREWITH
    • Publication number 20120132622
    • Publication date May 31, 2012
    • Hitachi, Ltd.
    • Miki YAMAZAKI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SWITCHGEAR
    • Publication number 20120044616
    • Publication date Feb 23, 2012
    • Keiichi TAKAHASHI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    AIR CIRCUIT BREAKER
    • Publication number 20120038438
    • Publication date Feb 16, 2012
    • Hitachi, Ltd.
    • Masashi Sawada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Electrode for Switch and Vacuum Switch, and Method of Manufacturing...
    • Publication number 20110073567
    • Publication date Mar 31, 2011
    • Hitachi, Ltd
    • Miki YAMAZAKI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM INSULATED SWITCHGEAR
    • Publication number 20110062117
    • Publication date Mar 17, 2011
    • Hitachi, Ltd
    • Kenji Tsuchiya
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Switchgear and Method for Operating Switchgear
    • Publication number 20110036811
    • Publication date Feb 17, 2011
    • Hitachi, Ltd
    • Tomoaki Utsumi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM INSULATED SWITCHGEAR
    • Publication number 20100170874
    • Publication date Jul 8, 2010
    • Hitachi, Ltd
    • Kenji Tsuchiya
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM SWITCHGEAR
    • Publication number 20100122967
    • Publication date May 20, 2010
    • Hitachi, Ltd
    • Ayumu MORITA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SWITCHGEAR
    • Publication number 20100089874
    • Publication date Apr 15, 2010
    • Hitachi, Ltd.
    • Ayumu MORITA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM SWITCH
    • Publication number 20100038343
    • Publication date Feb 18, 2010
    • Hitachi, Ltd.
    • Takashi Sato
    • H01 - BASIC ELECTRIC ELEMENTS