Patents by Inventor Isao Ohkouchi

Isao Ohkouchi 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).

  • Patent number: 5018367
    Abstract: A cooling energy generator with a cooling energy accumulator comprises a refrigerant, absorbent liquid, and a container having a first chamber receiving the absorbent liquid, a second chamber receiving the liquid refrigerant and a vapor passage communicating with a space over the absorbent liquid in the first chamber and with a space over the liquid refrigerant in the second chamber. The absorbent liquid is sprayed in the first chamber, and the absorbent liquid is cooled during an accelerated cooling operation. The absorbent liquid is heated during the cooling energy accumulation operation, and liquid refrigerant is sprayed in the second chamber during the accelerated cooling operation and during the normal cooling operation. An air conditioning heat exchanger supplies the cooling energy to a cooling device for air conditioning, and a heat pump is provided.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: May 28, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Akira Yamada, Isao Ohkouchi, Yasuo Koseki, Hideaki Kurokawa, Katsuya Ebara, Sankichi Takahashi, Risuke Onoda, Shigeo Sugimoto
  • Patent number: 4986079
    Abstract: A coldness generating apparatus comprising: an absorption type refrigerator having an evaporator for evaporating refrigerant, an absorber in which an absorbent for absorbing the thus-evaporated refrigerant steam is contained, a regenerator for heating and condensing the absorbent which has been diluted by the refrigerant steam, and a condenser for condensing and liquidizing the refrigerant steam which has been evaporated by heating and condensing the absorbent. A regenerating tank regenerates coldness generated by the evaporator, and the refrigerant comprises refrigerant having the solidification temperature lower than the freezing point so that coldness which is lower than the freezing point and which has been generated in the evaporator is regenerated in the form of ice or ice slurry. Since coldness can be regenerated at high density, cooling performance can be improved.
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: January 22, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Yasuo Koseki, Akira Yamada, Hideaki Kurokawa, Isao Ohkouchi, Katsuya Ebara, Sankichi Takahashi