TREA

Hiroshi Iwata

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • 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

    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

    Refrigerator and condenser
    • Patent number 5,946,939
    • Issue date Sep 7, 1999
    • Hitachi, Ltd.
    • Hiroaki Matsushima
    • F28 - HEAT EXCHANGE IN GENERAL
  • 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

    Refrigerator and condenser
    • Patent number 5,694,779
    • Issue date Dec 9, 1997
    • Hitachi, Ltd.
    • Hiroaki Matsushima
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Scroll fluid machine, scroll member and processing method thereof
    • Patent number 5,554,017
    • Issue date Sep 10, 1996
    • Hitachi, Ltd.
    • Hirokatsu Kohsokabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Scroll fluid machine, scroll member and processing method thereof
    • Patent number 5,427,512
    • Issue date Jun 27, 1995
    • Hitachi, Ltd.
    • Hirokatsu Kohsokabe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Synchronous rotating type scroll fluid machine
    • Patent number 5,295,808
    • Issue date Mar 22, 1994
    • Hitachi, Ltd.
    • Shigeru Machida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor with improved bearing
    • Patent number 5,137,437
    • Issue date Aug 11, 1992
    • Hitachi, Ltd.
    • Shigeru Machida
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary compressor
    • Patent number 5,087,170
    • Issue date Feb 11, 1992
    • Hitachi, Ltd.
    • Hirokatu Kousokabe
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Rotary compressor with tapered valve ports for lubricating pump
    • Patent number 4,561,829
    • Issue date Dec 31, 1985
    • Hitachi, Ltd.
    • Hiroshi Iwata
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil feeder means for use in a horizontal type rotary compressor
    • Patent number 4,544,338
    • Issue date Oct 1, 1985
    • Hitachi, Ltd.
    • Masahiro Takebayashi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Room air conditioner
    • Patent number 4,111,000
    • Issue date Sep 5, 1978
    • Hitachi, Ltd.
    • Akio Sakazume
    • F24 - HEATING RANGES VENTILATING