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Takuya Ishigaki

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Patents Grantslast 30 patents

  • Information Patent Grant

    Power supply apparatus
    • Patent number 10,541,549
    • Issue date Jan 21, 2020
    • Hitachi Automotive Systems, Ltd.
    • Fumihiro Sato
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power conversion apparatus with frequency operation change based on...
    • Patent number 9,887,638
    • Issue date Feb 6, 2018
    • Hitachi, Ltd.
    • Yasuaki Norimatsu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power conversion device and power conversion control method for the...
    • Patent number 9,806,622
    • Issue date Oct 31, 2017
    • Hitachi, Ltd.
    • Yasuaki Norimatsu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power supply apparatus
    • Patent number 9,750,125
    • Issue date Aug 29, 2017
    • Hitachi, Ltd.
    • Yasuaki Norimatsu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Semiconductor device and power supply using the same
    • Patent number 8,120,345
    • Issue date Feb 21, 2012
    • Renesas Electronics Corporation
    • Noboru Akiyama
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply
    • Patent number 7,385,380
    • Issue date Jun 10, 2008
    • Renesas Technology Corp.
    • Takuya Ishigaki
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power supply driver circuit
    • Patent number 7,138,786
    • Issue date Nov 21, 2006
    • Renesas Technology Corp.
    • Takuya Ishigaki
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    Resonance Type Power Supply Device
    • Publication number 20210273568
    • Publication date Sep 2, 2021
    • Yusuke UEI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Converter
    • Publication number 20190273440
    • Publication date Sep 5, 2019
    • Hitachi Automotive Systems, Ltd.
    • Daisuke IKARASHI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Supply Apparatus
    • Publication number 20180166903
    • Publication date Jun 14, 2018
    • Hitachi Automotive Systems, Ltd.
    • Fumihiro SATO
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Power Supply Apparatus
    • Publication number 20160352230
    • Publication date Dec 1, 2016
    • Hitachi, Ltd
    • Yasuaki NORIMATSU
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Conversion Device and Power Conversion Control Method for the...
    • Publication number 20160352229
    • Publication date Dec 1, 2016
    • Hitachi, Ltd
    • Yasuaki NORIMATSU
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Conversion Apparatus
    • Publication number 20160254758
    • Publication date Sep 1, 2016
    • Hitachi, Ltd
    • Yasuaki NORIMATSU
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER SUPPLY UNIT AND CONTROL CIRCUIT OF POWER SUPPLY UNIT
    • Publication number 20100301823
    • Publication date Dec 2, 2010
    • RENESAS ELECTRONICS CORPORATION
    • Takuya ISHIGAKI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    SEMICONDUCTOR DEVICE AND POWER SUPPLY USING THE SAME
    • Publication number 20090243575
    • Publication date Oct 1, 2009
    • Noboru AKIYAMA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    SWITCHING POWER SUPPLY
    • Publication number 20070262761
    • Publication date Nov 15, 2007
    • Takuya ISHIGAKI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power supply driver circuit
    • Publication number 20060113979
    • Publication date Jun 1, 2006
    • Takuya Ishigaki
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...