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Yoshiaki Douyama

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  • Shiroishi-City, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Throttle cable retainer
    • Patent number 9,447,737
    • Issue date Sep 20, 2016
    • WALBRO LLC
    • Noriyu Nagata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Layered scavenging carburetor
    • Patent number 8,261,775
    • Issue date Sep 11, 2012
    • Walbro Engine Management, L.L.C.
    • Tamio Aihara
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Integrated fuel delivery system
    • Patent number 7,475,678
    • Issue date Jan 13, 2009
    • Walbro Engine Management, L.L.C.
    • Yoshiaki Douyama
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scavenging carburetor
    • Patent number 7,429,033
    • Issue date Sep 30, 2008
    • Walbro Engine Management, L.L.C.
    • Harunori Seki
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Fluid pump assembly
    • Patent number 7,318,422
    • Issue date Jan 15, 2008
    • Walbro Engine Management, L.L.C.
    • Yoshiaki Douyama
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Bypass pressure regulator
    • Patent number 7,210,460
    • Issue date May 1, 2007
    • Walbro Engine Management, L.L.C.
    • Yoshiaki Douyama
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Rotary throttle valve carburetor
    • Patent number 7,114,708
    • Issue date Oct 3, 2006
    • Walbro Japan, Inc.
    • Yoshiaki Douyama
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Carburetor valve adjustment limiter cap assembly
    • Patent number 6,467,757
    • Issue date Oct 22, 2002
    • Walbro Japan, Inc.
    • Yoshiaki Douyama
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Needle valve carburetor
    • Patent number 6,302,384
    • Issue date Oct 16, 2001
    • Walbro Corporation
    • Yoshiaki Douyama
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

  • Information Patent Application

    THROTTLE CABLE RETAINER
    • Publication number 20140366841
    • Publication date Dec 18, 2014
    • Noriyu Nagata
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    LAYERED SCAVENGING CARBURETOR
    • Publication number 20090194726
    • Publication date Aug 6, 2009
    • Walbro Engine Management L.L.C.
    • Tamio Aihara
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Fluid pump assembly
    • Publication number 20070025866
    • Publication date Feb 1, 2007
    • Yoshiaki Douyama
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Bypass pressure regulator
    • Publication number 20060236983
    • Publication date Oct 26, 2006
    • Yoshiaki Douyama
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Integrated fuel delivery system
    • Publication number 20060207573
    • Publication date Sep 21, 2006
    • Walbro Engine Management, L.L.C.
    • Yoshiaki Douyama
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Scavenging carburetor
    • Publication number 20060125125
    • Publication date Jun 15, 2006
    • Walbro Engine Management, L.L.C.
    • Harunori Seki
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Rotary throttle valve carburetor
    • Publication number 20040251565
    • Publication date Dec 16, 2004
    • Walbro Japan, Inc.
    • Yoshiaki Douyama
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS