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Koichi Maruyama

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Patents Grantslast 30 patents

  • Information Patent Grant

    Valve device and assembly method of valve device
    • Patent number 11,441,690
    • Issue date Sep 13, 2022
    • AISIN CORPORATION
    • Koichi Maruyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Refrigerant control valve apparatus
    • Patent number 10,514,103
    • Issue date Dec 24, 2019
    • Aisin Seiki Kabushiki Kaisha
    • Naoto Yumisashi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Refrigerant control valve device
    • Patent number 10,513,966
    • Issue date Dec 24, 2019
    • Aisin Seiki Kabushiki Kaisha
    • Hideyuki Suzuki
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Refrigerant control valve apparatus
    • Patent number 10,513,968
    • Issue date Dec 24, 2019
    • Aisin Seiki Kabushiki Kaisha
    • Naoto Yumisashi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Refrigerant control valve apparatus
    • Patent number 10,072,556
    • Issue date Sep 11, 2018
    • Aisin Seiki Kabushiki Kaisha
    • Koichi Maruyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gas introducing structure of intake path
    • Patent number 8,011,352
    • Issue date Sep 6, 2011
    • Aisin Seiki Kabushiki Kaisha
    • Fumihiro Shinkai
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Gas introducing structure of intake path
    • Patent number 7,975,677
    • Issue date Jul 12, 2011
    • Aisin Seiki Kabushiki Kaisha
    • Fumihiro Shinkai

Patents Applicationslast 30 patents

  • Information Patent Application

    ROTARY VALVE
    • Publication number 20240191806
    • Publication date Jun 13, 2024
    • AISIN CORPORATION
    • Koichi MARUYAMA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    VALVE DEVICE AND ASSEMBLY METHOD OF VALVE DEVICE
    • Publication number 20210246990
    • Publication date Aug 12, 2021
    • AISIN SEIKI KABUSHIKI KAISHA
    • Koichi MARUYAMA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    OPENING AND CLOSING VALVE
    • Publication number 20200158258
    • Publication date May 21, 2020
    • AISIN SEIKI KABUSHIKI KAISHA
    • Koichi MARUYAMA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    REFRIGERANT CONTROL VALVE APPARATUS
    • Publication number 20180066758
    • Publication date Mar 8, 2018
    • AISIN SEIKI KABUSHIKI KAISHA
    • Naoto YUMISASHI
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    REFRIGERANT CONTROL VALVE APPARATUS
    • Publication number 20170335750
    • Publication date Nov 23, 2017
    • AISIN SEIKI KABUSHIKI KAISHA
    • Naoto YUMISASHI
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    REFRIGERANT CONTROL VALVE APPARATUS
    • Publication number 20170335749
    • Publication date Nov 23, 2017
    • AISIN SEIKI KABUSHIKI KAISHA
    • Koichi MARUYAMA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    REFRIGERANT CONTROL VALVE DEVICE
    • Publication number 20170211460
    • Publication date Jul 27, 2017
    • AISIN SEIKI KABUSHIKI KAISHA
    • Hideyuki SUZUKI
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Gas introducing structure of intake path
    • Publication number 20090223476
    • Publication date Sep 10, 2009
    • Aisin Seiki Kabushiki Kaisha
    • Fumihiro Shinkai
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...