TREA

Masakatsu OKAYA

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat recovery device
    • Patent number 12,092,113
    • Issue date Sep 17, 2024
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Takehiro Matsuzaka
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor system, and control method for same
    • Patent number 11,859,605
    • Issue date Jan 2, 2024
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Takehiro Matsuzaka
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor, oil-free screw compressor, and method of manufacturing...
    • Patent number 10,316,841
    • Issue date Jun 11, 2019
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Yukiko Ikeda
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Oil-free screw compressor coated with a base resin, a solid lubrica...
    • Patent number 9,944,880
    • Issue date Apr 17, 2018
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Yukiko Ikeda
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Oil free compressor system
    • Patent number 9,328,731
    • Issue date May 3, 2016
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Toshiaki Yabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor
    • Patent number 8,801,412
    • Issue date Aug 12, 2014
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Yukiko Ikeda
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...

Patents Applicationslast 30 patents

  • Information Patent Application

    HEAT RECOVERY DEVICE
    • Publication number 20220341426
    • Publication date Oct 27, 2022
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Takehiro MATSUZAKA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR SYSTEM, AND CONTROL METHOD FOR SAME
    • Publication number 20220163027
    • Publication date May 26, 2022
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Takehiro MATSUZAKA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Compressor, Oil-Free Screw Compressor, and Method of Manufacturing...
    • Publication number 20160115950
    • Publication date Apr 28, 2016
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Yukiko IKEDA
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    SCREW COMPRESSOR
    • Publication number 20140322058
    • Publication date Oct 30, 2014
    • Yukiko IKEDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Oil Free Screw Compressor
    • Publication number 20130136643
    • Publication date May 30, 2013
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Toshiaki YABE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCREW COMPRESSOR
    • Publication number 20120100029
    • Publication date Apr 26, 2012
    • Yukiko IKEDA
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...