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Hiroyuki Oka

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Patents Grantslast 30 patents

  • Information Patent Grant

    Primary pump and carburetor using the same
    • Patent number 11,236,704
    • Issue date Feb 1, 2022
    • Zama Japan Kabushiki Kaisha
    • Hiroyuki Oka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Solenoid valve for a fuel system
    • Patent number 10,753,503
    • Issue date Aug 25, 2020
    • Andreas Stihl AG & Co KG
    • Jens Ramler
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Attachment structure for solenoid valve to carburetor unit
    • Patent number 10,267,266
    • Issue date Apr 23, 2019
    • Zama Japan Kabushiki Kaisha
    • Takumi Nonaka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Attachment structure for solenoid valve to carburetor unit
    • Patent number 9,599,067
    • Issue date Mar 21, 2017
    • Zama Japan Kabushiki Kaisha
    • Takumi Nonaka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Throttle valve device
    • Patent number 9,422,891
    • Issue date Aug 23, 2016
    • Zama Japan Kabushiki Kaisha
    • Hiroyuki Oka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Throttle valve device
    • Patent number 8,733,730
    • Issue date May 27, 2014
    • Zama Japan Kabushiki Kaisha
    • Hiroyuki Oka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    PRIMARY PUMP AND CARBURETOR USING THE SAME
    • Publication number 20210033045
    • Publication date Feb 4, 2021
    • ZAMA JAPAN CO. LTD.
    • Hiroyuki Oka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    ATTACHMENT STRUCTURE FOR SOLENOID VALVE TO CARBURETOR UNIT
    • Publication number 20200072162
    • Publication date Mar 5, 2020
    • ZAMA JAPAN KABUSHIKI KAISHA
    • Takumi Nonaka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    ATTACHMENT STRUCTURE FOR SOLENOID VALVE TO CARBURETOR UNIT
    • Publication number 20170298872
    • Publication date Oct 19, 2017
    • ZAMA JAPAN KABUSHIKI KAISHA
    • Takumi Nonaka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    THROTTLE VALVE DEVICE
    • Publication number 20170130679
    • Publication date May 11, 2017
    • ZAMA JAPAN KABUSHIKI KAISHA
    • Hiroyuki Oka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Solenoid Valve for a Fuel System
    • Publication number 20160369914
    • Publication date Dec 22, 2016
    • Andreas Stihl AG & Co KG
    • Jens Ramler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    ATTACHMENT STRUCTURE FOR SOLENOID VALVE TO CARBURETOR UNIT
    • Publication number 20160356246
    • Publication date Dec 8, 2016
    • ZAMA JAPAN KABUSHIKI KAISHA
    • Takumi Nonaka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    ELECTROMAGNETIC FUEL VALVE
    • Publication number 20150226167
    • Publication date Aug 13, 2015
    • Andreas Stihl AG & Co KG
    • Jens Ramler
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    THROTTLE VALVE DEVICE
    • Publication number 20150014873
    • Publication date Jan 15, 2015
    • ZAMA JAPAN KABUSHIKI KAISHA
    • Hiroyuki Oka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    THROTTLE VALVE DEVICE
    • Publication number 20120205566
    • Publication date Aug 16, 2012
    • ZAMA JAPAN CORPORATION
    • Hiroyuki Oka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS