Patents by Inventor Kisaburo Minakawa

Kisaburo Minakawa 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).

  • Air cooling type absorption cooler
    Patent number: 4563882
    Abstract: An air cooling type absorbing cooler provided with an air cooling type absorber having a structure in which, in cooling the absorbing solution and the refrigerant vapor by air, the absorbing solution and the refrigerant vapor on the inlet side of the absorber are cooled by the cooling air on the outlet side of the absorber, while the absorbing solution on the outlet side of the absorber is cooled by the cooling air on the outlet side. By causing the absorbing solution sprayed into the absorber to flow downward and the air for cooling the absorbing solution and the refrigerant vapor to flow upward, the absorbing solution having a temperature which is approximately equal to the outlet temperature of the absorber is cooled by the air which has a temperature approximately equal to the inlet temperature of the cooling air. The absorbing solution supplied from the absorber is cooled by the refrigerant vapor evaporated by the evaporator.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: January 14, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Yoshifumi Kunugi, Shigeo Sugimoto, Kisaburo Minakawa, Kenzi Machizawa