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Yoshifumi Kunugi

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat transfer fins and heat exchanger
    • Patent number 5,353,866
    • Issue date Oct 11, 1994
    • Hitachi, Ltd.
    • Hironobu Ueda
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Absorption air conditioner
    • Patent number 5,205,137
    • Issue date Apr 27, 1993
    • Hitachi, Ltd.
    • Tomihisa Ohuchi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Chemical heat pump
    • Patent number 5,186,241
    • Issue date Feb 16, 1993
    • Hitachi, Ltd.
    • Yoshifumi Kunugi
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat accumulation system and method of operating the same
    • Patent number 5,085,271
    • Issue date Feb 4, 1992
    • Hitachi, Ltd.
    • Michio Yanadori
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Double effect air cooled absorption refrigerating machine
    • Patent number 4,841,744
    • Issue date Jun 27, 1989
    • Hitachi, Ltd.
    • Shigekichi Kurosawa
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Heat transfer fin
    • Patent number 4,791,984
    • Issue date Dec 20, 1988
    • Hitachi, Ltd.
    • Toshio Hatada
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat exchanger
    • Patent number 4,756,362
    • Issue date Jul 12, 1988
    • Hitachi, Ltd.
    • Mituo Kudoh
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Air-cooled absorption heating and cooling system
    • Patent number 4,748,830
    • Issue date Jun 7, 1988
    • Hitachi, Ltd.
    • Tomihisa Oouchi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Air-cooled absorption refrigeration system
    • Patent number 4,655,053
    • Issue date Apr 7, 1987
    • Hitachi, Ltd.
    • Yoshifumi Kunugi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Air cooling type absorption cooler
    • Patent number 4,563,882
    • Issue date Jan 14, 1986
    • Hitachi, Ltd.
    • Yoshifumi Kunugi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Solenoid valve
    • Patent number 4,546,795
    • Issue date Oct 15, 1985
    • Hitachi, Ltd.
    • Yoshio Okamoto
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Absorption cooling and heating system
    • Patent number 4,476,694
    • Issue date Oct 16, 1984
    • Hitachi, Ltd.
    • Yoshifumi Kunugi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Combustion apparatus
    • Patent number 4,474,551
    • Issue date Oct 2, 1984
    • Hitachi, Ltd.
    • Kazumi Iwai
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Absorption type heat pump system
    • Patent number 4,448,040
    • Issue date May 15, 1984
    • Hitachi, Ltd.
    • Yoshifumi Kunugi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Air cooling apparatus
    • Patent number 4,126,015
    • Issue date Nov 21, 1978
    • Hitachi, Ltd.
    • Kunio Fujie
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...