Patents by Inventor Tatsuhiro Tokuyama

Tatsuhiro Tokuyama 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).

  • Heat exchanging system
    Patent number: 9243831
    Abstract: In an air conditioning system, a compressor, a condenser, and an indoor unit that functions as an evaporator during cooling, are provided in a circulation pathway of a refrigerant, in respective order during cooling. An additional heat exchanger is provided in the circulation pathway at a point that during cooling is between the condenser and the indoor unit. The additional heat exchanger is contained within a tank of a cooling device. The cooling device performs cooling of the additional heat exchanger by supplying water into the tank. Quantity of water supplied into the tank is controlled through open/close control of a control valve.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: January 26, 2016
    Assignee: EN-TECH CO., LTD.
    Inventors: Syuji Hattori, Tatsuhiro Tokuyama
  • HEAT EXCHANGING SYSTEM
    Publication number: 20130174593
    Abstract: In an air conditioning system, a compressor, a condenser, and an indoor unit that functions as an evaporator during cooling, are provided in a circulation pathway of a refrigerant, in respective order during cooling. An additional heat exchanger is provided in the circulation pathway at a point that during cooling is between the condenser and the indoor unit. The additional heat exchanger is contained within a tank of a cooling device. The cooling device performs cooling of the additional heat exchanger by supplying water into the tank. Quantity of water supplied into the tank is controlled through open/close control of a control valve.
    Type: Application
    Filed: October 17, 2011
    Publication date: July 11, 2013
    Applicant: EN-TECH CO., LTD.
    Inventors: Syuji Hattori, Tatsuhiro Tokuyama