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Ryuichi Furukoshi

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Integrated circuit and method of digitally controling critical mode...
    • Patent number 12,119,742
    • Issue date Oct 15, 2024
    • Sanken Electric Co., Ltd.
    • Osamu Ohtake
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Integrated circuit and method of synchronous rectification control...
    • Patent number 12,113,436
    • Issue date Oct 8, 2024
    • Sanken Electric Co., Ltd.
    • Osamu Ohtake
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Control apparatus and method for current resonance circuit and curr...
    • Patent number 10,910,952
    • Issue date Feb 2, 2021
    • Ryuichi Furukoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Device and method for calculating switching time
    • Patent number 10,608,526
    • Issue date Mar 31, 2020
    • Sanken Electric Co., Ltd.
    • Osamu Ohtake
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current resonance type power supply device
    • Patent number 9,871,455
    • Issue date Jan 16, 2018
    • Sanken Electric Co., Ltd.
    • Osamu Ohtake
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current resonance type power supply device
    • Patent number 9,774,262
    • Issue date Sep 26, 2017
    • Sanken Electric Co., Ltd.
    • Osamu Ohtake
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power factor correction circuit having bottom skip controller
    • Patent number 9,716,427
    • Issue date Jul 25, 2017
    • Sanken Electric Co., Ltd.
    • Osamu Ohtake
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current resonant power source apparatus
    • Patent number 9,641,088
    • Issue date May 2, 2017
    • Sanken Electric Co., Ltd.
    • Osamu Ohtake
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current resonance type power supply device
    • Patent number 9,444,352
    • Issue date Sep 13, 2016
    • Sanken Electric Co., Ltd.
    • Osamu Ohtake
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Drive circuit
    • Patent number 9,025,348
    • Issue date May 5, 2015
    • Sanken Electric Co., Ltd.
    • Keiichiro Ozawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Device for driving switching elements
    • Patent number 7,764,089
    • Issue date Jul 27, 2010
    • Sanken Electric Co., Ltd.
    • Akio Iwabuchi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power converter
    • Patent number 7,567,443
    • Issue date Jul 28, 2009
    • Sanken Electric Co., Ltd.
    • Toshitaka Shiga
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply apparatus
    • Patent number 7,492,614
    • Issue date Feb 17, 2009
    • Sanken Electric Co., Ltd.
    • Ryuichi Furukoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC converter
    • Patent number 7,382,633
    • Issue date Jun 3, 2008
    • Sanken Electric Co., Ltd.
    • Shinji Aso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Synchronous commutation DC-DC converter
    • Patent number 7,330,365
    • Issue date Feb 12, 2008
    • Sanken Electric Co., Ltd.
    • Hiroshi Usui
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC converter
    • Patent number 7,203,080
    • Issue date Apr 10, 2007
    • Sanken Electric Co., Ltd.
    • Shinji Aso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power source apparatus
    • Patent number 7,154,762
    • Issue date Dec 26, 2006
    • Sanken Electric Co., Ltd.
    • Ryuichi Furukoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    INTEGRATED CIRCUIT AND METHOD OF DIGITALLY CONTROLING CRITICAL MODE...
    • Publication number 20220294337
    • Publication date Sep 15, 2022
    • Sanken Electric Co., Ltd
    • Osamu OHTAKE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    INTEGRATED CIRCUIT AND METHOD OF SYNCHRONOUS RECTIFICATION CONTROL...
    • Publication number 20220271654
    • Publication date Aug 25, 2022
    • Sanken Electric Co., Ltd
    • Osamu OHTAKE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Device and Method for Calculating Switching Time
    • Publication number 20200067403
    • Publication date Feb 27, 2020
    • Sanken Electric Co., Ltd.
    • Osamu OHTAKE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CURRENT RESONANCE TYPE POWER SUPPLY DEVICE
    • Publication number 20170207714
    • Publication date Jul 20, 2017
    • Sanken Electric Co., Ltd
    • Osamu OHTAKE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER FACTOR CORRECTION CIRCUIT
    • Publication number 20160285358
    • Publication date Sep 29, 2016
    • Sanken Electric Co., Ltd
    • Osamu OHTAKE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CURRENT RESONANCE TYPE POWER SUPPLY DEVICE
    • Publication number 20150280577
    • Publication date Oct 1, 2015
    • Sanken Electric Co., Ltd
    • Osamu OHTAKE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CURRENT RESONANT POWER SOURCE APPARATUS
    • Publication number 20150256088
    • Publication date Sep 10, 2015
    • Sanken Electric Co., Ltd
    • Osamu OHTAKE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CURRENT RESONANCE TYPE POWER SUPPLY DEVICE
    • Publication number 20150092453
    • Publication date Apr 2, 2015
    • Sanken Electric Co., Ltd
    • Osamu OHTAKE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DRIVE CIRCUIT
    • Publication number 20130070487
    • Publication date Mar 21, 2013
    • Sanken Electric Co., Ltd
    • Keiichiro OZAWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DEVICE FOR DRIVING SWITCHING ELEMENTS
    • Publication number 20090045851
    • Publication date Feb 19, 2009
    • Sanken Electric Co., Ltd.
    • Akio Iwabuchi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Switching Power Supply Apparatus
    • Publication number 20070274104
    • Publication date Nov 29, 2007
    • Sanken Electric Co., Ltd.
    • Ryuichi Furukoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power converter
    • Publication number 20070076446
    • Publication date Apr 5, 2007
    • Sanken Electric Co., Ltd.
    • Toshitaka Shiga
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Synchronous commutation dc-dc converter
    • Publication number 20070008757
    • Publication date Jan 11, 2007
    • Hiroshi Usui
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    DC converter
    • Publication number 20060215424
    • Publication date Sep 28, 2006
    • Sanken Electric Co., Ltd
    • Shinji Aso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DC converter
    • Publication number 20060146584
    • Publication date Jul 6, 2006
    • Sanken Electric Co., Ltd
    • Shinji Aso
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Power source apparatus
    • Publication number 20050219864
    • Publication date Oct 6, 2005
    • Ryuichi Furukoshi
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...