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Daisuke Sugai

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Switch unit and switchgear
    • Patent number 8,975,550
    • Issue date Mar 10, 2015
    • Hitachi, Ltd.
    • Daisuke Sugai
    • H01 - BASIC ELECTRIC ELEMENTS
  • 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

    Vacuum insulated switchgear
    • Patent number 8,411,418
    • Issue date Apr 2, 2013
    • Hitachi, Ltd.
    • Shuichi Kikukawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Vacuum insulated switch-gear and its height adjusting method
    • Patent number 8,304,678
    • Issue date Nov 6, 2012
    • Hitachi, Ltd.
    • Shuichi Kikukawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Vacuum switchgear
    • Patent number 8,168,909
    • Issue date May 1, 2012
    • Hitachi, Ltd.
    • Masato Kobayashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum insulated switchgear
    • Patent number 8,008,594
    • Issue date Aug 30, 2011
    • Hitachi, Ltd.
    • Takuya Kurogi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Vacuum Switchgear
    • Patent number 7,223,932
    • Issue date May 29, 2007
    • Hitachi, Ltd.
    • Masato Kobayashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum switchgear
    • Patent number 7,135,652
    • Issue date Nov 14, 2006
    • Hitachi, Ltd.
    • Masato Kobayashi
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    SWITCHGEAR
    • Publication number 20150021298
    • Publication date Jan 22, 2015
    • Hitachi, Ltd
    • Masashi SAWADA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Switch Unit and Switchgear
    • Publication number 20120175234
    • Publication date Jul 12, 2012
    • Hitachi, Ltd
    • Daisuke SUGAI
    • 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

    VACUUM INSULATED SWITCHGEAR
    • Publication number 20110058311
    • Publication date Mar 10, 2011
    • Hitachi, Ltd
    • Shuichi KIKUKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM INSULATED SWITCH-GEAR AND ITS HEIGHT ADJUSTING METHOD
    • Publication number 20100025376
    • Publication date Feb 4, 2010
    • Hitachi, Ltd.
    • Shuichi KIKUKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM SWITCHGEAR
    • Publication number 20090173719
    • Publication date Jul 9, 2009
    • Masato Kobayashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM INSULATED SWITCHGEAR
    • Publication number 20090020507
    • Publication date Jan 22, 2009
    • Takuya KUROGI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Vacuum Switchgear
    • Publication number 20060237394
    • Publication date Oct 26, 2006
    • Hitachi, Ltd.
    • Masato Kobayashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Vacuum switchgear
    • Publication number 20040232112
    • Publication date Nov 25, 2004
    • Masato Kobayashi
    • H01 - BASIC ELECTRIC ELEMENTS