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Masao Katooka

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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat sink arrangement for electrical apparatus
    • Patent number 7,902,464
    • Issue date Mar 8, 2011
    • Sansha Electric Manufacturing Company, Limited
    • Kenzo Danjo
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Heat sink arrangement for electrical apparatus
    • Patent number 7,579,554
    • Issue date Aug 25, 2009
    • Sansha Electric Manufacturing Company Limited
    • Kenzo Danjo
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power supply apparatus
    • Patent number 7,339,807
    • Issue date Mar 4, 2008
    • Sansha Electric Manufacturing Company, Limited
    • Masao Katooka
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Heat-generating component cooling structure
    • Patent number 7,315,450
    • Issue date Jan 1, 2008
    • Sansha Electric Manufacturing Company, Limited
    • Hideo Ishii
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Attachment for preventing cover from falling off
    • Patent number 7,300,293
    • Issue date Nov 27, 2007
    • Sansha Electric Manufacturing Company, Limited
    • Masao Katooka
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power supply apparatus
    • Patent number 7,256,994
    • Issue date Aug 14, 2007
    • Sansha Electric Manufacturing Company, Limited
    • Hideo Ishii
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power supply apparatus
    • Patent number 6,825,441
    • Issue date Nov 30, 2004
    • Sansha Electric Manufacturing Company, Limited
    • Masao Katooka
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power supply apparatus for welder
    • Patent number 6,797,922
    • Issue date Sep 28, 2004
    • Sansha Electric Manufacturing Company, Limited
    • Masao Katooka
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • 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

    Power supply apparatus
    • Patent number 6,665,183
    • Issue date Dec 16, 2003
    • Sansha Electric Manufacturing Company, Limited
    • Kunio Shikata
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • 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

    Power supply apparatus
    • Patent number D474738
    • Issue date May 20, 2003
    • Sansha Electric Manufacturing Company, Limited
    • Hideo Ishii
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Power supply apparatus
    • Patent number 6,483,687
    • Issue date Nov 19, 2002
    • Sansha Electric Manufacturing Company, Limited
    • Masao Katooka
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • 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

    Plasma arc utilizing apparatus
    • Patent number 6,057,524
    • Issue date May 2, 2000
    • Sansha Electric Manufacturing Company, Limited
    • Masao Katooka
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power supply apparatus for welders and method of manufacturing same
    • Patent number 6,051,806
    • Issue date Apr 18, 2000
    • Sansha Electric Manufacturing Co., Limited
    • Kunio Shikata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Waterproofed power supply apparatus
    • Patent number 5,943,220
    • Issue date Aug 24, 1999
    • Sansha Electric Manufacturing Company, Limited
    • Kunio Shikata
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power supply apparatus
    • Patent number 5,831,240
    • Issue date Nov 3, 1998
    • Sansha Electric Manufacturing Company, Limited
    • Masao Katooka
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power supply apparatus
    • Patent number 5,757,638
    • Issue date May 26, 1998
    • Sansha Electric Manufacturing Company, Limited
    • Masao Katooka
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Air plasma arc cutter
    • Patent number 5,726,416
    • Issue date Mar 10, 1998
    • Sansha Electric Manufacturing Company, Limited
    • Masao Katooka
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Portable power supply unit with AC-DC converter
    • Patent number D386148
    • Issue date Nov 11, 1997
    • Sansaha Electric Manufacturing Co., Ltd.
    • Masao Katooka
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Portable power supply unit with AC-DC converter
    • Patent number D377335
    • Issue date Jan 14, 1997
    • Sansha Electric Manufacturing Company, Limited
    • Masao Katooka
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Cooling structure for power supply device
    • Patent number 5,424,915
    • Issue date Jun 13, 1995
    • Sansha Electric Manufacturing Company, Ltd.
    • Masao Katooka
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Artificial porcelain tooth manufacturing
    • Patent number 4,214,356
    • Issue date Jul 29, 1980
    • Sansha Electric Manufacturing Co., Ltd.
    • Susumu Takenaka
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

  • Information Patent Application

    HEAT SINK ARRANGEMENT FOR ELECTRICAL APPARATUS
    • Publication number 20090237898
    • Publication date Sep 24, 2009
    • SANSHA ELECTRIC MANUFACTURING COMPANY, LIMITED
    • Kenzo Danjo
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Power supply apparatus
    • Publication number 20070165433
    • Publication date Jul 19, 2007
    • Masao Katooka
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ATTACHMENT FOR PREVENTING COVER FROM FALLING OFF
    • Publication number 20070117443
    • Publication date May 24, 2007
    • SANSHA ELECTRIC MANUFACTURING COMPANY, LIMITED
    • Masao Katooka
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Power supply apparatus
    • Publication number 20070086159
    • Publication date Apr 19, 2007
    • Hideo Ishii
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Heat sink arrangement for electrical apparatus
    • Publication number 20060267180
    • Publication date Nov 30, 2006
    • Kenzo Danjo
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Heat-generating component cooling structure
    • Publication number 20050286226
    • Publication date Dec 29, 2005
    • Hideo Ishii
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

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

    Power supply apparatus for welder
    • Publication number 20030201262
    • Publication date Oct 30, 2003
    • Masao Katooka
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Power supply apparatus
    • Publication number 20030085254
    • Publication date May 8, 2003
    • Masao Katooka
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

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

    Power supply apparatus
    • Publication number 20020038795
    • Publication date Apr 4, 2002
    • Masao Katooka
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR