TREA

Masayuki Urashin

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  • Shimizu, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piston operated bypass valve for a screw compressor
    • Patent number 9,169,840
    • Issue date Oct 27, 2015
    • Hitachi Appliances, Inc.
    • Ryuichiro Yonemoto
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor
    • Patent number 7,014,437
    • Issue date Mar 21, 2006
    • Hitachi, Ltd., trustee, for the benefit of Hitachi Air Conditioning Systems C...
    • Hiroki Ohsumimoto
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor and method of manufacturing rotor for the same
    • Patent number 6,884,049
    • Issue date Apr 26, 2005
    • Hitachi, Ltd.,
    • Takeshi Hida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor with oil-mist separator
    • Patent number 6,554,595
    • Issue date Apr 29, 2003
    • Hitachi, Ltd.
    • Takeshi Hida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor
    • Patent number 6,506,039
    • Issue date Jan 14, 2003
    • Hitachi, Ltd.
    • Hiroki Osumimoto
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor
    • Patent number 6,273,693
    • Issue date Aug 14, 2001
    • Hitachi, Ltd.
    • Takeshi Hida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw fluid machine
    • Patent number 6,257,855
    • Issue date Jul 10, 2001
    • Hitachi, Ltd.
    • Hirotaka Kameya
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor
    • Patent number 6,183,227
    • Issue date Feb 6, 2001
    • Hitachi, Ltd.
    • Takeshi Hida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor
    • Patent number 4,878,820
    • Issue date Nov 7, 1989
    • Hitachi, Ltd.
    • Motomichi Doi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Refrigerator
    • Patent number 4,261,180
    • Issue date Apr 14, 1981
    • Hitachi, Ltd.
    • Shigekazu Nozawa
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

  • Information Patent Application

    Screw Compressor and Chiller Unit Using Same
    • Publication number 20120247139
    • Publication date Oct 4, 2012
    • Hitachi Appliances, Inc.
    • Ryuichiro Yonemoto
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Screw compressor
    • Publication number 20100247366
    • Publication date Sep 30, 2010
    • Hitachi Appliances, Inc.
    • Eisuke KATO
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    HERMETIC SCREW COMPRESSOR
    • Publication number 20080112832
    • Publication date May 15, 2008
    • Eisuke Kato
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Screw compressor and method of manufacturing rotor for the same
    • Publication number 20050063852
    • Publication date Mar 24, 2005
    • Takeshi Hida
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    Screw compressor
    • Publication number 20040208771
    • Publication date Oct 21, 2004
    • Hiroki Ohsumimoto
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Screw compressor and method of manufacturing rotor for the same
    • Publication number 20030108446
    • Publication date Jun 12, 2003
    • Takeshi Hida
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    SCREW COMPRESSOR
    • Publication number 20030021714
    • Publication date Jan 30, 2003
    • Hiroki Osumimoto
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Compressor with oil-mist separator
    • Publication number 20020054823
    • Publication date May 9, 2002
    • Takeshi Hida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Screw compressor
    • Publication number 20010000320
    • Publication date Apr 19, 2001
    • Takeshi Hida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...