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Fumikazu TAKAHASHI

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  • Yokohama, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    POWER CONVERTER
    • Publication number 20170279279
    • Publication date Sep 28, 2017
    • Hitachi lnformation & Telecommunication Engineering, Ltd.
    • Takae SHIMADA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    RESONANT POWER SUPPLY DEVICE
    • Publication number 20170155325
    • Publication date Jun 1, 2017
    • Hitachi Information & Telecommunication Engineering, Ltd.
    • Takae SHIMADA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Electric Energy Storage Device
    • Publication number 20150303731
    • Publication date Oct 22, 2015
    • Hitachi, Ltd
    • Fumikazu Takahashi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    STEP-UP STEP-DOWN CONVERTER DEVICE
    • Publication number 20150263608
    • Publication date Sep 17, 2015
    • Hitachi Information & Telecommunication Engineering, Ltd.
    • KOSUKE ABE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power Conversion System and Method for Detecting Isolated Operation...
    • Publication number 20150109836
    • Publication date Apr 23, 2015
    • Hitachi Information & Telecommunication Engineering, Ltd.
    • Tomoyuki HATAKEYAMA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER SUPPLY DEVICE AND METHOD OF OPERATING DEVICE
    • Publication number 20150029772
    • Publication date Jan 29, 2015
    • HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD.
    • Takae SHIMADA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER STORAGE SYSTEM AND POWER SOURCE SYSTEM
    • Publication number 20140117756
    • Publication date May 1, 2014
    • Hitachi Information & Telecommunication Engineering, Ltd.
    • Fumikazu TAKAHASHI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER STORAGE SYSTEM
    • Publication number 20140117936
    • Publication date May 1, 2014
    • Hitachi Information & Telecommunication Engineering, Ltd.
    • KIMIAKI TANIGUCHI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER FACTOR CORRECTION DEVICE AND CONTROL METHOD THEREOF
    • Publication number 20110096576
    • Publication date Apr 28, 2011
    • Hitachi Computer Peripherals Co., Ltd.
    • Fumikazu TAKAHASHI
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Digital Controlled Power Supply
    • Publication number 20090102446
    • Publication date Apr 23, 2009
    • Hitachi Computer Peripherals, Co., Ltd.
    • Fumikazu Takahashi
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    DC BACKUP POWER SUPPLY SYSTEM AND DISK ARRAY USING SAME
    • Publication number 20080290733
    • Publication date Nov 27, 2008
    • Fumikazu Takahashi
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    SWITCHING POWER SUPPLY
    • Publication number 20080174276
    • Publication date Jul 24, 2008
    • Fumikazu TAKAHASHI
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    PWM Signal Generating Circuit and Power Supply Apparatus Comprising...
    • Publication number 20080079407
    • Publication date Apr 3, 2008
    • Takae Shimada
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Switching power supply unit and disk array system
    • Publication number 20070047100
    • Publication date Mar 1, 2007
    • Fumikazu Takahashi
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    Uninterruptible power system
    • Publication number 20060267410
    • Publication date Nov 30, 2006
    • Akihiko Kanouda
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Data processing unit and DC backup power supply
    • Publication number 20060056142
    • Publication date Mar 16, 2006
    • Fumikazu Takahashi
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    DC backup power supply system
    • Publication number 20050206242
    • Publication date Sep 22, 2005
    • Akihiko Kanouda
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    DC backup power supply system
    • Publication number 20050146223
    • Publication date Jul 7, 2005
    • Akihiko Kanouda
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    DC backup power supply system and disk array using same
    • Publication number 20050099750
    • Publication date May 12, 2005
    • Fumikazu Takahashi
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    Uninterruptible power system
    • Publication number 20040125626
    • Publication date Jul 1, 2004
    • Akihiko Kanouda
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    DC backup power supply device and method for diagnosing the same
    • Publication number 20030231009
    • Publication date Dec 18, 2003
    • Minehiro Nemoto
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    DC backup power supply system
    • Publication number 20030222618
    • Publication date Dec 4, 2003
    • Akihiko Kanouda
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Semiconductor integrated circuit device
    • Publication number 20020175718
    • Publication date Nov 28, 2002
    • Fumikazu Takahashi
    • H03 - BASIC ELECTRONIC CIRCUITRY