Patents by Inventor Koichi FUKUCHI

Koichi FUKUCHI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Cooling system and cooling method
    Patent number: 9404679
    Abstract: A cooling system includes; an evaporator evaporating a refrigerant by heat exchange with room air; a water-cooled condenser being arranged above the evaporator and condensing the refrigerant by heat exchange with cold water; a cold-water flow control valve controlling the flow rate of the cold water supplied to the water-cooled condenser; a refrigerant cooling tower being arranged above the evaporator and condensing the refrigerant by heat exchange with outside air; a blower being arranged at the refrigerant cooling tower and blowing the outside air; a refrigerant-temperature detector detecting the temperature of the refrigerant condensed by the water-cooled condenser and/or the refrigerant cooling tower; and a controller changing at least one of the opening in the cold-water flow control valve and the rotational speed of a motor in the blower according to the temperature.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: August 2, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Junichi Ito, Yasuhiro Kashirajima, Yasuhiko Inadomi, Koichi Fukuchi
  • COOLING SYSTEM AND COOLING METHOD
    Publication number: 20140000300
    Abstract: A cooling system includes; an evaporator evaporating a refrigerant by heat exchange with room air; a water-cooled condenser being arranged above the evaporator and condensing the refrigerant by heat exchange with cold water; a cold-water flow control valve controlling the flow rate of the cold water supplied to the water-cooled condenser; a refrigerant cooling tower being arranged above the evaporator and condensing the refrigerant by heat exchange with outside air; a blower being arranged at the refrigerant cooling tower and blowing the outside air; a refrigerant-temperature detector detecting the temperature of the refrigerant condensed by the water-cooled condenser and/or the refrigerant cooling tower; and a controller changing at least one of the opening in the cold-water flow control valve and the rotational speed of a motor in the blower according to the temperature.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 2, 2014
    Inventors: Junichi ITO, Yasuhiro KASHIRAJIMA, Yasuhiko INADOMI, Koichi FUKUCHI