Patents by Inventor Ushiro Nagase

Ushiro Nagase 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).

  • Geothermal energy conversion system
    Patent number: 4512156
    Abstract: Apparatus and a method for using terrestrial heat to increase the temperature of a liquid, such as water. A circulation pipe buried in the earth in a region of high subterranean heat allows the liquid to move in heat exchange relationship to the subterranean heat. The liquid is pumped from a tank adjacent to the surface of the earth and through the pipe back to the tank. The heated water in the tank can be removed from the tank and caused to flow through a heat exchanger also adjacent to the surface of the earth. Then, the water is returned to the tank for re-use and reheating.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: April 23, 1985
    Assignee: Kyoto Central Co. Ltd.
    Inventor: Ushiro Nagase