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Takashi Ryu

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Patents Grantslast 30 patents

  • Information Patent Grant

    Battery management circuit and energy storage device
    • Patent number 12,199,457
    • Issue date Jan 14, 2025
    • NUVOTON TECHNOLOGY CORPORATION JAPAN
    • Takashi Ryu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Battery management circuit, energy storage device, and battery mana...
    • Patent number 12,081,049
    • Issue date Sep 3, 2024
    • NUVOTON TECHNOLOGY CORPORATION JAPAN
    • Takashi Ryu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Fuel injection valve driving device
    • Patent number 11,466,650
    • Issue date Oct 11, 2022
    • Hitachi Astemo, Ltd.
    • Atsushi Ogawa
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Power supply protection circuit
    • Patent number 11,264,890
    • Issue date Mar 1, 2022
    • NUVOTON TECHNOLOGY CORPORATION JAPAN
    • Takuya Ishii
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Bi-directional converter, controller, and semiconductor device
    • Patent number 10,284,091
    • Issue date May 7, 2019
    • PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    • Keisuke Kuroda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current sense circuit and switching regulator using the same
    • Patent number 8,686,704
    • Issue date Apr 1, 2014
    • Panasonic Corporation
    • Takuya Ishii
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Step-down switching regulator
    • Patent number 8,384,367
    • Issue date Feb 26, 2013
    • Panasonic Corporation
    • Maki Murakami
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current detection circuit and voltage converter using the current d...
    • Patent number 8,149,021
    • Issue date Apr 3, 2012
    • Panasonic Corporation
    • Kouichi Mikami
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Switching regulator
    • Patent number 8,040,121
    • Issue date Oct 18, 2011
    • Panasonic Corporation
    • Makoto Ishida
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Step-up converter
    • Patent number 7,825,646
    • Issue date Nov 2, 2010
    • Panasonic Corporation
    • Takuya Ishii
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Step-down converter
    • Patent number 7,782,030
    • Issue date Aug 24, 2010
    • Panasonic Corporation
    • Takashi Ryu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Output circuit
    • Patent number 7,764,113
    • Issue date Jul 27, 2010
    • Panasonic Corporation
    • Takashi Ryu
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Buck-boost switching regulator
    • Patent number 7,737,668
    • Issue date Jun 15, 2010
    • Panasonic Corporation
    • Richard Oswald
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Hysteretic switching regulator
    • Patent number 7,714,562
    • Issue date May 11, 2010
    • Panasonic Corporation
    • Richard Oswald
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Internal frequency compensation circuit for integrated circuit cont...
    • Patent number 7,683,719
    • Issue date Mar 23, 2010
    • Panasonic Corporation
    • Richard Oswald
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Power supply
    • Patent number 7,592,792
    • Issue date Sep 22, 2009
    • Panasonic Corporation
    • Takashi Ryu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Step-up power supply device
    • Patent number 7,567,069
    • Issue date Jul 28, 2009
    • Panasonic Corporation
    • Takashi Ryu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Step-up converter
    • Patent number 7,482,789
    • Issue date Jan 27, 2009
    • Panasonic Corporation
    • Mikio Motomori
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current detection circuit and switching power supply
    • Patent number 7,479,771
    • Issue date Jan 20, 2009
    • Panasonic Corporation
    • Takashi Ryu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC-DC converter
    • Patent number 7,391,199
    • Issue date Jun 24, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Hiroki Akashi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current detection circuit and switching power supply using the same
    • Patent number 7,323,850
    • Issue date Jan 29, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Takashi Ryu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power supply
    • Patent number 7,294,994
    • Issue date Nov 13, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Takashi Ryu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC-DC converter
    • Patent number 7,285,944
    • Issue date Oct 23, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Takuya Ishii
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Method and apparatus for performing lossless sensing and negative i...
    • Patent number 7,282,894
    • Issue date Oct 16, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Richard K. Oswald
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Performance controller for a step down current mode switching regul...
    • Patent number 7,282,900
    • Issue date Oct 16, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Richard K. Oswald
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current mode switching regulator with predetermined on time
    • Patent number 7,250,746
    • Issue date Jul 31, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Richard K. Oswald
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Active diode
    • Patent number 7,199,636
    • Issue date Apr 3, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Richard K. Oswald
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Multi-output power supply and electronic device using them
    • Patent number 7,081,741
    • Issue date Jul 25, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Takuya Ishii
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC-DC converter
    • Patent number 7,075,275
    • Issue date Jul 11, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Mikio Motomori
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC-to-DC converter
    • Patent number 6,831,448
    • Issue date Dec 14, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Takuya Ishii
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    BATTERY MANAGEMENT CIRCUIT, ENERGY STORAGE DEVICE, AND BATTERY MANA...
    • Publication number 20220149635
    • Publication date May 12, 2022
    • NUVOTON TECHNOLOGY CORPORATION JAPAN
    • Takashi RYU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    BATTERY MANAGEMENT CIRCUIT AND ENERGY STORAGE DEVICE
    • Publication number 20220131390
    • Publication date Apr 28, 2022
    • NUVOTON TECHNOLOGY CORPORATION JAPAN
    • Takashi RYU
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    POWER SUPPLY PROTECTION CIRCUIT
    • Publication number 20200259410
    • Publication date Aug 13, 2020
    • PANASONIC CORPORATION
    • Takuya ISHII
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    FUEL INJECTION VALVE DRIVING DEVICE
    • Publication number 20200191105
    • Publication date Jun 18, 2020
    • Keihin Corporation
    • Atsushi OGAWA
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    SOLENOID VALVE DRIVE CONTROL CIRCUIT, SOLENOID VALVE DRIVE DEVICE,...
    • Publication number 20200132012
    • Publication date Apr 30, 2020
    • Panasonic Intellectual Property Management Co., Ltd.
    • Keisuke KURODA
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    BI-DIRECTIONAL CONVERTER, CONTROLLER, AND SEMICONDUCTOR DEVICE
    • Publication number 20170346401
    • Publication date Nov 30, 2017
    • Panasonic Intellectual Property Management Co., Ltd.
    • Keisuke KURODA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    SWITCHING REGULATOR
    • Publication number 20110089925
    • Publication date Apr 21, 2011
    • PANASONIC CORPORATION
    • Makoto ISHIDA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CURRENT SENSE CIRCUIT AND SWITCHING REGULATOR USING THE SAME
    • Publication number 20100289473
    • Publication date Nov 18, 2010
    • Takuya Ishii
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CURRENT DETECTION CIRCUIT AND VOLTAGE CONVERTER USING THE CURRENT D...
    • Publication number 20100156383
    • Publication date Jun 24, 2010
    • PANASONIC CORPORATION
    • Kouichi Mikami
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    STEP-DOWN SWITCHING REGULATOR
    • Publication number 20100134078
    • Publication date Jun 3, 2010
    • Maki MURAKAMI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Internal frequency compensation circuit for integrated circuit cont...
    • Publication number 20090066421
    • Publication date Mar 12, 2009
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Richard Oswald
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Buck-boost switching regulator
    • Publication number 20090066301
    • Publication date Mar 12, 2009
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Richard Oswald
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    OUTPUT CIRCUIT
    • Publication number 20090015299
    • Publication date Jan 15, 2009
    • Matsushita Electric Industrial Co., Ltd.
    • Takashi RYU
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Power Supply
    • Publication number 20080273354
    • Publication date Nov 6, 2008
    • Takashi Ryu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Step-up converter
    • Publication number 20080211475
    • Publication date Sep 4, 2008
    • Takuya Ishii
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Step-up power supply device
    • Publication number 20080074158
    • Publication date Mar 27, 2008
    • Takashi Ryu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Current Detection Circuit and Switching Power Supply Using the Same
    • Publication number 20080018387
    • Publication date Jan 24, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Takashi Ryu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Step-down converter
    • Publication number 20070241725
    • Publication date Oct 18, 2007
    • Takashi Ryu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Hysteretic switching regulator
    • Publication number 20070145965
    • Publication date Jun 28, 2007
    • Richard Oswald
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DC-DC converter
    • Publication number 20070063685
    • Publication date Mar 22, 2007
    • Takuya Ishii
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DC-DC converter
    • Publication number 20070018628
    • Publication date Jan 25, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Hiroki Akashi
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Step-up converter
    • Publication number 20060255774
    • Publication date Nov 16, 2006
    • Mikio Motomori
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    DC-DC converter
    • Publication number 20060214647
    • Publication date Sep 28, 2006
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Makoto Ishimaru
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Power supply
    • Publication number 20060164021
    • Publication date Jul 27, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Takashi Ryu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Multi-output power supply circuit
    • Publication number 20060131961
    • Publication date Jun 22, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Takuya Ishii
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    DC-DC converter
    • Publication number 20060103332
    • Publication date May 18, 2006
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Mikio Motomori
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Performance controller for a step down current mode switching regul...
    • Publication number 20060044853
    • Publication date Mar 2, 2006
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Richard K. Oswald
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Method and apparatus for performing lossless sensing of positive an...
    • Publication number 20060044843
    • Publication date Mar 2, 2006
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Richard K. Oswald
    • G01 - MEASURING TESTING
  • Information Patent Application

    Multi-output power supply and electronic device using them
    • Publication number 20060044724
    • Publication date Mar 2, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Takuya Ishii
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Current detection circuit and switching power supply using the same
    • Publication number 20060028192
    • Publication date Feb 9, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Takashi Ryu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER