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Toshikazu Fujiyoshi

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  • Osaka-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    DC-DC converter including regeneration snubber circuit
    • Patent number 8,873,259
    • Issue date Oct 28, 2014
    • Sansha Electric Manufacturing Co., Ltd.
    • Toshikazu Fujiyoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Inverter circuit with controller for controlling switching elements...
    • Patent number 8,400,799
    • Issue date Mar 19, 2013
    • Sansha Electric Manufacturing Co., Ltd.
    • Toshikazu Fujiyoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC-DC converter circuit
    • Patent number 8,363,432
    • Issue date Jan 29, 2013
    • Sansha Electric Manufacturing Co., Ltd.
    • Hajime Katsushima
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current balanced push-pull inverter circuit with regeneration snubb...
    • Patent number 8,107,265
    • Issue date Jan 31, 2012
    • Sansha Electric Manufacturing Co., Ltd.
    • Toshikazu Fujiyoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current balanced push-pull inverter circuit with snubber and discha...
    • Patent number 8,094,470
    • Issue date Jan 10, 2012
    • Sansha Electric Manufacturing Co., Ltd.
    • Toshikazu Fujiyoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current balanced push-pull inverter circuit
    • Patent number 8,094,469
    • Issue date Jan 10, 2012
    • Sansha Electric Manufacturing Co., Ltd.
    • Toshikazu Fujiyoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power supply apparatus
    • Patent number 7,075,032
    • Issue date Jul 11, 2006
    • Sansha Electric Manufacturing Company, Limited
    • Kunio Karino
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power supply apparatus
    • Patent number 6,914,788
    • Issue date Jul 5, 2005
    • Sansha Electric Manufacturing Company, Limite
    • Toshikazu Fujiyoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Coil
    • Patent number 6,774,757
    • Issue date Aug 10, 2004
    • Sansha Electric Manufacturing Company, Limited
    • Toshikazu Fujiyoshi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    High-frequency large current handling transformer
    • Patent number 6,636,140
    • Issue date Oct 21, 2003
    • Sansha Electric Manufacturing Company, Limited
    • Toshikazu Fujiyoshi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Coil
    • Patent number 6,433,664
    • Issue date Aug 13, 2002
    • Sansha Electric Manufacturing Company, Limited
    • Hideo Ishii
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    DC power supply apparatus
    • Patent number 6,069,811
    • Issue date May 30, 2000
    • Sansha Electric Manufacturing Company, Limited
    • Haruo Moriguchi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC power supply apparatus for arc-utilizing apparatuses
    • Patent number 6,054,674
    • Issue date Apr 25, 2000
    • Sansha Electric Manufacturing Company, Limited
    • Haruo Moriguchi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    DC power supply apparatus including boosting/lowering converter uni...
    • Patent number 6,023,416
    • Issue date Feb 8, 2000
    • Sansha Electric Manufacturing Company, Limited
    • Kunio Shikata
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Inverter and DC power supply apparatus with inverter used therein
    • Patent number 5,930,122
    • Issue date Jul 27, 1999
    • Sansha Electric Manufacturing Co., Limited
    • Haruo Moriguchi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    DC power supply apparatus
    • Patent number 5,926,381
    • Issue date Jul 20, 1999
    • Sansha Electric Manufacturing Company, Limited
    • Haruo Moriguchi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Arc welder
    • Patent number 5,760,372
    • Issue date Jun 2, 1998
    • Sansha Electric Manufacturing Company, Limited
    • Kunio Karino
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power supply apparatus
    • Patent number 5,643,475
    • Issue date Jul 1, 1997
    • Sansha Electric Manufacturing Company, Limited
    • Kunio Karino
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Plasma-arc power supply apparatus
    • Patent number 5,630,952
    • Issue date May 20, 1997
    • Sansha Electric Manufacturing Company, Limited
    • Kunio Karino
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Consumable electrode DC arc welder
    • Patent number 5,457,300
    • Issue date Oct 10, 1995
    • Sansha Electric Manufacturing Co., Ltd.
    • Kunio Karino
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Arc welder with timed control of arcing recovery and means for redu...
    • Patent number 5,343,017
    • Issue date Aug 30, 1994
    • Sansha Electric Manufacturing Co., Ltd.
    • Kunio Karino
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Arc welder
    • Patent number 5,310,992
    • Issue date May 10, 1994
    • Sansha Electric Manufacturing Company, Ltd.
    • Kunio Karino
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Consumable electrode type D.C. arc welder
    • Patent number 5,306,894
    • Issue date Apr 26, 1994
    • Sansha Electric Manufacturing Company, Ltd.
    • Haruo Moriguchi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Arc welder
    • Patent number 5,272,313
    • Issue date Dec 21, 1993
    • Sansha Electric Manufacturing Co., Ltd.
    • Kunio Karino
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    DC-DC CONVERTER CIRCUIT
    • Publication number 20120243263
    • Publication date Sep 27, 2012
    • Hajime Katsushima
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    INVERTER CIRCUIT
    • Publication number 20110280054
    • Publication date Nov 17, 2011
    • Toshikazu Fujiyoshi
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    DC-DC CONVERTER CIRCUIT
    • Publication number 20110280048
    • Publication date Nov 17, 2011
    • Toshikazu Fujiyoshi
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    INVERTER CIRCUIT
    • Publication number 20110216557
    • Publication date Sep 8, 2011
    • Toshikazu Fujiyoshi
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    INVERTER CIRCUIT
    • Publication number 20110058395
    • Publication date Mar 10, 2011
    • Toshikazu Fujiyoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    DC-DC CONVERTER CIRCUIT
    • Publication number 20110049989
    • Publication date Mar 3, 2011
    • Toshikazu Fujiyoshi
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Power supply apparatus
    • Publication number 20050109749
    • Publication date May 26, 2005
    • Kunio Karino
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Power supply apparatus
    • Publication number 20040174725
    • Publication date Sep 9, 2004
    • Toshikazu Fujiyoshi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Coil
    • Publication number 20030222751
    • Publication date Dec 4, 2003
    • Toshikazu Fujiyoshi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    High-frequency large current handling transformer
    • Publication number 20020070836
    • Publication date Jun 13, 2002
    • Toshikazu Fujiyoshi
    • H01 - BASIC ELECTRIC ELEMENTS