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Masayoshi Kotaki

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  • Hitachinaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fluid pump and high-pressure fuel feed pump
    • Patent number 7,744,353
    • Issue date Jun 29, 2010
    • Hitachi, Ltd.
    • Hiroyuki Yamada
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    High pressure fuel pump for internal combustion engine
    • Patent number 7,665,976
    • Issue date Feb 23, 2010
    • Hitachi, Ltd.
    • Satoshi Usui
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    High-pressure fuel pump
    • Patent number 7,152,583
    • Issue date Dec 26, 2006
    • Hitachi, Ltd.
    • Masami Abe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fuel pump for inter-cylinder direct fuel injection apparatus
    • Patent number 6,895,992
    • Issue date May 24, 2005
    • Hitachi, Ltd.
    • Shizuka Yamaguchi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fuel pump and direct fuel injection engine
    • Patent number 6,860,255
    • Issue date Mar 1, 2005
    • Hitachi, Ltd.
    • Shizuka Yamaguchi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Seal mechanism and fuel pump provided therewith
    • Patent number 6,783,130
    • Issue date Aug 31, 2004
    • Hitachi, Ltd.
    • Minoru Hashida
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fuel pump, in-cylinder direct injection type internal combustion en...
    • Patent number 6,543,424
    • Issue date Apr 8, 2003
    • Hitachi, Ltd.
    • Shizuka Yamaguchi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    High pressure fuel pump
    • Patent number 6,488,478
    • Issue date Dec 3, 2002
    • Hitachi, Ltd.
    • Yoshinobu Ono
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    High pressure fuel pump
    • Patent number 6,471,491
    • Issue date Oct 29, 2002
    • Hitachi, Ltd.
    • Yoshinobu Ono
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    High pressure fuel pump
    • Patent number 6,368,071
    • Issue date Apr 9, 2002
    • Hitachi, Ltd.
    • Minoru Hashida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    High pressure fuel pump for internal combustion engine
    • Publication number 20060228239
    • Publication date Oct 12, 2006
    • Hitachi, Ltd
    • Satoshi Usui
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Fuel pump for inter-cylinder direct fuel injection apparatus
    • Publication number 20050178441
    • Publication date Aug 18, 2005
    • HITACHI, LTD.
    • Shizuka Yamaguchi
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    High pressure fuel pump for internal combustion engine
    • Publication number 20040096346
    • Publication date May 20, 2004
    • Satoshi Usui
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Fluid pump and high-pressure fuel feed pump
    • Publication number 20040052652
    • Publication date Mar 18, 2004
    • Hiroyuki Yamada
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Fuel pump for inter-cylinder direct fuel injection apparatus
    • Publication number 20040003713
    • Publication date Jan 8, 2004
    • Hitachi, Ltd
    • Shizuka Yamaguchi
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    High-pressure fuel pump
    • Publication number 20030219346
    • Publication date Nov 27, 2003
    • Hitachi, Ltd.
    • Masami Abe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Fuel pump and direct fuel injection engine
    • Publication number 20030089343
    • Publication date May 15, 2003
    • Hitachi, Ltd.
    • Shizuka Yamaguchi
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    High pressure fuel pump for internal combustion engine
    • Publication number 20030017069
    • Publication date Jan 23, 2003
    • Hitachi, Ltd.
    • Satoshi Usui
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Seal mechanism and fuel pump provided therewith
    • Publication number 20030006564
    • Publication date Jan 9, 2003
    • Minoru Hashida
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    High pressure fuel pump
    • Publication number 20020127119
    • Publication date Sep 12, 2002
    • Hitachi, Ltd.
    • Yoshinobu Ono
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    High pressure fuel pump
    • Publication number 20020044873
    • Publication date Apr 18, 2002
    • Hitachi, Ltd.
    • Minoru Hashida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...