TREA

Takao Senshu

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Patents Grantslast 30 patents

  • Information Patent Grant

    Fin-tube type heat exchanger
    • Patent number 5,360,060
    • Issue date Nov 1, 1994
    • Hitachi, Ltd.
    • Takeo Tanaka
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Active noise control apparatus for three-dimensional space
    • Patent number 5,343,713
    • Issue date Sep 6, 1994
    • Hitachi, Ltd.
    • Shinya Okabe
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Refrigerator and method for indicating refrigerant amount
    • Patent number 5,214,918
    • Issue date Jun 1, 1993
    • Hitachi, Ltd.
    • Kensaku Oguni
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Air conditioner and operating method thereof
    • Patent number 5,107,684
    • Issue date Apr 28, 1992
    • Hitachi, Ltd.
    • Susumu Nakayama
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Air-conditioner system
    • Patent number 5,065,588
    • Issue date Nov 19, 1991
    • Hitachi, Ltd.
    • Susumu Nakayama
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    LSI temperature control system
    • Patent number 5,052,472
    • Issue date Oct 1, 1991
    • Hitachi, Ltd.
    • Kenji Takahashi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Air conditioner and air conditioning method
    • Patent number 4,958,500
    • Issue date Sep 25, 1990
    • Hitachi, Ltd.
    • Shigeaki Kuroda
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Falling film evaporator
    • Patent number 4,918,944
    • Issue date Apr 24, 1990
    • Hitachi, Ltd.
    • Kenji Takahashi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Scroll-type fluid machine with different terminal end wrap angles
    • Patent number 4,904,170
    • Issue date Feb 27, 1990
    • Hitachi, Ltd.
    • Kazutaka Suefuji
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Anti-rotation mechanism for use with orbiting scroll member of scro...
    • Patent number 4,810,176
    • Issue date Mar 7, 1989
    • Hitachi, Ltd.
    • Kazutaka Suefuji
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Fluid machine with resin-coated scroll members
    • Patent number 4,802,831
    • Issue date Feb 7, 1989
    • Hitachi, Ltd.
    • Kazutaka Suefuji
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Oil feeding device for scroll fluid apparatus
    • Patent number 4,749,344
    • Issue date Jun 7, 1988
    • Hitachi, Ltd.
    • Yoshikatsu Tomita
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Control method and apparatus for an air conditioner using a heat pump
    • Patent number 4,603,556
    • Issue date Aug 5, 1986
    • Hitachi, Ltd.
    • Kazutaka Suefuji
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Refrigeration system
    • Patent number 4,562,700
    • Issue date Jan 7, 1986
    • Hitachi, Ltd.
    • Akira Atsumi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Refrigeration apparatus
    • Patent number 4,551,983
    • Issue date Nov 12, 1985
    • Hitachi, Ltd.
    • Akira Atsumi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Heat pump apparatus
    • Patent number 4,528,823
    • Issue date Jul 16, 1985
    • Hitachi, Ltd.
    • Taketoshi Mochizuki
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Refrigerating apparatus having a gas injection path
    • Patent number 4,517,811
    • Issue date May 21, 1985
    • Hitachi, Ltd.
    • Akira Atsumi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Expansion valve
    • Patent number 4,500,035
    • Issue date Feb 19, 1985
    • Hitachi, Ltd.
    • Shigeaki Kuroda
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Blower
    • Patent number 4,432,694
    • Issue date Feb 21, 1984
    • Hitachi, Ltd.
    • Sigeaki Kuroda
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Heat exchanger
    • Patent number 4,365,667
    • Issue date Dec 28, 1982
    • Hitachi, Ltd.
    • Toshio Hatada
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Cross-fin tube type heat exchanger
    • Patent number 4,300,629
    • Issue date Nov 17, 1981
    • Hitachi, Ltd.
    • Toshio Hatada
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Method for the production of heat exchangers
    • Patent number 4,285,385
    • Issue date Aug 25, 1981
    • Hitachi, Ltd.
    • Masakatsu Hayashi
    • B22 - CASTING POWDER METALLURGY