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Takeshi Hatakeyama

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  • Chuo-ku, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Circulating-current reducing circuit and transformer unit
    • Patent number 10,312,016
    • Issue date Jun 4, 2019
    • Sumida Corporation
    • Takeshi Hatakeyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Coil part and method of manufacturing coil part
    • Patent number 10,109,412
    • Issue date Oct 23, 2018
    • Sumida Corporation
    • Takeshi Hatakeyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Small size transformer
    • Patent number 10,008,321
    • Issue date Jun 26, 2018
    • Sumida Corporation
    • Takeshi Hatakeyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Inverter circuit
    • Patent number 8,013,536
    • Issue date Sep 6, 2011
    • Sumida Corporation
    • Takeshi Hatakeyama
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Inverter driving circuit
    • Patent number 7,557,514
    • Issue date Jul 7, 2009
    • Sumida Corporation
    • Hiroyuki Miyazaki
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Inverter circuit
    • Patent number 7,515,443
    • Issue date Apr 7, 2009
    • Sumida Electric Co., Ltd.
    • Hiroyuki Miyazaki
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Discharge tube drive circuit
    • Patent number 7,449,842
    • Issue date Nov 11, 2008
    • Sumida Corporation
    • Hiroyuki Miyazaki
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    CIRCULATING-CURRENT REDUCING CIRCUIT AND TRANSFORMER UNIT
    • Publication number 20190035541
    • Publication date Jan 31, 2019
    • Sumida Corporation
    • Takeshi HATAKEYAMA
    • G05 - CONTROLLING REGULATING
  • Information Patent Application

    SMALL SIZE TRANSFORMER
    • Publication number 20170294265
    • Publication date Oct 12, 2017
    • Sumida Corporation
    • Takeshi HATAKEYAMA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    COIL PART AND METHOD OF MANUFACTURING COIL PART
    • Publication number 20170243693
    • Publication date Aug 24, 2017
    • Sumida Corporation
    • Takeshi HATAKEYAMA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Inverter Circuit
    • Publication number 20090153072
    • Publication date Jun 18, 2009
    • Sumida Corporation
    • Takeshi Hatakeyama
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Inverter driving circuit
    • Publication number 20080042587
    • Publication date Feb 21, 2008
    • Sumida Corporation
    • Hiroyuki Miyazaki
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Inverter Circuit
    • Publication number 20080025055
    • Publication date Jan 31, 2008
    • SUMIDA ELECTRIC CO., LTD.
    • Hiroyuki Miyazaki
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Discharge Tube Drive Circuit
    • Publication number 20070228987
    • Publication date Oct 4, 2007
    • SUMIDA CORPORATION
    • Hiroyuki Miyazaki
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR