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Hiroaki Hata

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Patents Grantslast 30 patents

  • Information Patent Grant

    Displacement type fluid machine
    • Patent number 6,406,279
    • Issue date Jun 18, 2002
    • Hitachi, Ltd.
    • Hirokatsu Kohsokabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Displacement type fluid machine
    • Patent number 6,352,418
    • Issue date Mar 5, 2002
    • Hitachi, Ltd.
    • Hirokatsu Kohsokabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Displacement type fluid machine having an orbiting displacer formin...
    • Patent number 6,332,763
    • Issue date Dec 25, 2001
    • Hitachi, Ltd.
    • Hirokatsu Kohsokabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Displacement type fluid machine having an orbiting displacer formin...
    • Patent number 6,332,764
    • Issue date Dec 25, 2001
    • Hitachi, Ltd.
    • Hirokatsu Kohsokabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Refrigeration cycle
    • Patent number 6,258,293
    • Issue date Jul 10, 2001
    • Hitachi, Ltd.
    • Tadashi Iizuka
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Displacement fluid machine
    • Patent number 6,217,303
    • Issue date Apr 17, 2001
    • Hitachi, Ltd.
    • Hirokatsu Kohsokabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Displacement type fluid machine
    • Patent number 6,213,743
    • Issue date Apr 10, 2001
    • Hitachi, Ltd.
    • Hirokatsu Kohsokabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Displacement type fluid machine
    • Patent number 6,183,228
    • Issue date Feb 6, 2001
    • Hitachi, Ltd.
    • Shigeru Machida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Displacement fluid machine
    • Patent number 6,179,593
    • Issue date Jan 30, 2001
    • Hitachi, Ltd.
    • Shunichi Mitsuya
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Displacement type fluid machine having an orbiting displacer formin...
    • Patent number 6,164,941
    • Issue date Dec 26, 2000
    • Hitachi, Ltd.
    • Hirokatsu Kohsokabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Displacement type fluid machine having rotation suppression of an o...
    • Patent number 6,152,714
    • Issue date Nov 28, 2000
    • Hitachi, Ltd.
    • Shunichi Mitsuya
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Displacement fluid machine
    • Patent number 6,099,279
    • Issue date Aug 8, 2000
    • Hitachi, Ltd.
    • Hirokatsu Kohsokabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Refrigeration cycle
    • Patent number 6,029,459
    • Issue date Feb 29, 2000
    • Hitachi, Ltd.
    • Tadashi Iizuka
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Refrigerant compressor
    • Patent number 5,964,581
    • Issue date Oct 12, 1999
    • Hitachi, Ltd.
    • Tadashi Iizuka
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Refrigerating apparatus and refrigerant compressor
    • Patent number 5,711,165
    • Issue date Jan 27, 1998
    • Hitachi, Ltd.
    • Tadashi Iizuka
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Refrigeration apparatus containing lubricant composition
    • Patent number 5,553,465
    • Issue date Sep 10, 1996
    • Hitachi, Ltd.
    • Katsumi Fukuda
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Refrigerator
    • Patent number 5,540,061
    • Issue date Jul 30, 1996
    • Hitachi, Ltd.
    • Masahiko Gommori
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Rotary compressor and blade tip structure
    • Patent number 5,494,423
    • Issue date Feb 27, 1996
    • Hitachi, Ltd.
    • Akihiko Ishiyama
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Lubricant for refrigeration compressors
    • Patent number 5,445,753
    • Issue date Aug 29, 1995
    • Hitachi, Ltd.
    • Katsumi Fukuda
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Lubricant composition, refrigeration apparatus containing same and...
    • Patent number 5,417,872
    • Issue date May 23, 1995
    • Hitachi, Ltd.
    • Katsumi Fukuda
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Horizontal multi-cylinder rotary compressor
    • Patent number 5,314,318
    • Issue date May 24, 1994
    • Hitachi, Ltd.
    • Hiroaki Hata
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor with shaft balancers
    • Patent number 5,230,616
    • Issue date Jul 27, 1993
    • Hitachi, Ltd.
    • Yukio Serizawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Torque control apparatus for rotating motor machine
    • Patent number 4,992,715
    • Issue date Feb 12, 1991
    • Hitachi, Ltd.
    • Mitsuru Nakamura
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Hermetic rotary compressor with balancing weights
    • Patent number 4,915,554
    • Issue date Apr 10, 1990
    • Hitachi, Ltd.
    • Yukio Serizawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Torque control apparatus for rotary machine
    • Patent number 4,736,143
    • Issue date Apr 5, 1988
    • Hitachi, Ltd.
    • Yozo Nakamura
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Motor-driven compressor provided with torque control device
    • Patent number 4,726,738
    • Issue date Feb 23, 1988
    • Hitachi, Ltd.
    • Yozo Nakamura
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    Displacement type fluid machine
    • Publication number 20010010800
    • Publication date Aug 2, 2001
    • Hirokatsu Kohsokabe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...