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Toshimasa Fukai

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Patents Grantslast 30 patents

  • Information Patent Grant

    Carbon-metal structure and method for manufacturing carbon-metal st...
    • Patent number 11,527,378
    • Issue date Dec 13, 2022
    • Waseda University
    • Suguru Noda
    • B82 - NANO-TECHNOLOGY
  • Information Patent Grant

    Transformer for vacuum capacitor type instrument
    • Patent number 11,342,127
    • Issue date May 24, 2022
    • Meidensha Corporation
    • Osamu Takeya
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Sealed relay
    • Patent number 10,910,184
    • Issue date Feb 2, 2021
    • Meidensha Corporation
    • Daizo Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Field emission device and reforming treatment method
    • Patent number 10,068,741
    • Issue date Sep 4, 2018
    • Meidensha Corporation
    • Daizo Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Sealed relay
    • Patent number 9,589,751
    • Issue date Mar 7, 2017
    • Meidensha Corporation
    • Daizo Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum capacitor-voltage-transformer
    • Patent number 9,159,488
    • Issue date Oct 13, 2015
    • Meidensha Corporation
    • Toru Tanimizu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum capacitor
    • Patent number 8,755,166
    • Issue date Jun 17, 2014
    • Meidensha Corporation
    • Eiichi Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum capacitor
    • Patent number 8,749,946
    • Issue date Jun 10, 2014
    • Meidensha Corporation
    • Eiichi Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum capacitor
    • Patent number 8,749,947
    • Issue date Jun 10, 2014
    • Meidensha Corporation
    • Eiichi Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electromagnetic device
    • Patent number 7,091,807
    • Issue date Aug 15, 2006
    • Japan AE Power Systems Corporation
    • Toru Tanimizu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum variable capacitor
    • Patent number 7,042,699
    • Issue date May 9, 2006
    • Kabushiki Kaisha Meidensha
    • Eiichi Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Bellows for use in vacuum capacitor
    • Patent number 7,041,930
    • Issue date May 9, 2006
    • Kabushiki Kaisha Meidensha
    • Eiichi Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum variable capacitor with energization and heat shielding bellows
    • Patent number 6,975,499
    • Issue date Dec 13, 2005
    • Kabushiki Kaisha Meidensha
    • Eiichi Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum variable capacitor device
    • Patent number 6,462,930
    • Issue date Oct 8, 2002
    • Kabushiki Kaisha Meidensha
    • Tomofumi Nemoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum capacitor
    • Patent number 6,307,729
    • Issue date Oct 23, 2001
    • Kabushiki Kaisha Meidensha
    • Toshimasa Fukai
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electrode material
    • Patent number 5,489,412
    • Issue date Feb 6, 1996
    • Kabushiki Kaisha Meidensha
    • Nobuyuki Yoshioka
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Method for forming an electrical contact material
    • Patent number 5,480,472
    • Issue date Jan 2, 1996
    • Kabushiki Kaisha Meidensha
    • Yasushi Noda
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Process for forming contact material including the step of preparin...
    • Patent number 5,352,404
    • Issue date Oct 4, 1994
    • Kabushiki Kaisha Meidensha
    • Nobuyuki Yoshioka
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Vacuum interrupter
    • Patent number 4,707,577
    • Issue date Nov 17, 1987
    • Kabushiki Kaisha Meidensha
    • Nobuaki Tamaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Vacuum interrupter
    • Patent number 4,547,638
    • Issue date Oct 15, 1985
    • Kabushiki Kaisha Meidensha
    • Yutaka Kashimoto
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    CARBON-METAL STRUCTURE AND METHOD FOR MANUFACTURING CARBON-METAL ST...
    • Publication number 20210375572
    • Publication date Dec 2, 2021
    • WASEDA UNIVERSITY
    • Suguru NODA
    • B82 - NANO-TECHNOLOGY
  • Information Patent Application

    TRANSFORMER FOR VACUUM CAPACITOR TYPE INSTRUMENT
    • Publication number 20200357572
    • Publication date Nov 12, 2020
    • MEIDENSHA CORPORATION
    • Osamu TAKEYA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SEALED RELAY
    • Publication number 20180308651
    • Publication date Oct 25, 2018
    • MEIDENSHA CORPORATION
    • Daizo TAKAHASHI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    FIELD EMISSION DEVICE AND REFORMING TREATMENT METHOD
    • Publication number 20170365439
    • Publication date Dec 21, 2017
    • MEIDENSHA CORPORATION
    • Daizo TAKAHASHI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SEALED RELAY
    • Publication number 20160133419
    • Publication date May 12, 2016
    • MEIDENSHA CORPORATION
    • Daizo TAKAHASHI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SEALED RELAY
    • Publication number 20160133405
    • Publication date May 12, 2016
    • MEIDENSHA CORPORATION
    • Daizo TAKAHASHI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM CAPACITOR
    • Publication number 20130038978
    • Publication date Feb 14, 2013
    • MEIDENSHA CORPORATION
    • Eiichi Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM CAPACITOR-VOLTAGE-TRANSFORMER
    • Publication number 20120153932
    • Publication date Jun 21, 2012
    • MEIDENSHA CORPORATION
    • Toru Tanimizu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM CAPACITOR
    • Publication number 20110235231
    • Publication date Sep 29, 2011
    • MEIDENSHA CORPORATION
    • Eiichi Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM CAPACITOR
    • Publication number 20110228441
    • Publication date Sep 22, 2011
    • MEIDENSHA CORPORATION
    • Eiichi Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM VARIABLE CAPACITOR
    • Publication number 20050264974
    • Publication date Dec 1, 2005
    • KABUSHIKI KAISHA MEIDENSHA
    • Eiichi Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Vacuum variable capacitor with energization and heat shielding bellows
    • Publication number 20050162807
    • Publication date Jul 28, 2005
    • KABUSHIKI KAISHA MEIDENSHA
    • Eiichi Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Bellows for use in vacuum capacitor
    • Publication number 20050133481
    • Publication date Jun 23, 2005
    • KABUSHIKI KAISHA MEIDENSHA
    • Eiichi Takahashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Electrical contact, method of manufacturing the same, electrode for...
    • Publication number 20050092714
    • Publication date May 5, 2005
    • JAPAN AE POWER SYSTEMS CORPORATION
    • Shigeru Kikuchi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Electromagnetic device
    • Publication number 20050057103
    • Publication date Mar 17, 2005
    • JAPAN AE POWER SYSTEMS CORPORATION
    • Toru Tanimizu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Vacuum variable capacitor device
    • Publication number 20020048136
    • Publication date Apr 25, 2002
    • KABUSHIKI KAISHA MEIDENSHA
    • Tomofumi Nemoto
    • H01 - BASIC ELECTRIC ELEMENTS