Patents by Inventor Yasushi Kamata

Yasushi Kamata 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).

  • Controlling method of absorption refrigerator
    Patent number: 6560979
    Abstract: Prevention of the incapability of operation due to crystallization in the absorption solution. When the temperature difference (&Dgr;T) between the temperature of the concentrated absorption solution Tr detected by the temperature sensor (22) and the temperature of crystallization Tc for the concentrated absorption solution at a specified concentration detected by the concentration sensor (21) comes within a prescribed figure, the opening of the heat control valve (20) is decreased by a specified figure, 20% for example. When the concentration of the concentrated absorption solution, which is measured by the concentration sensor (21), exceeds a prescribed figure, 65% for example, the heat supplied to the high temperature regenerator (1) is reduced by decreasing the opening of the heat control valve (20) regardless of the above temperature difference (&Dgr;T).
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: May 13, 2003
    Assignees: Sanyo Electric Co., Ltd., Sanyo Electric Air Conditioning Co., Ltd.
    Inventors: Shiguma Yamazaki, Eiichi Enomoto, Yasushi Kamata, Masahiro Furukawa
  • Controlling method of absorption refrigerator
    Publication number: 20020162341
    Abstract: Prevention of the incapability of operation due to crystallization in the absorption solution. When the temperature difference (&Dgr;T) between the temperature of the concentrated absorption solution Tr detected by the temperature sensor (22) and the temperature of crystallization Tc for the concentrated absorption solution at a specified concentration detected by the concentration sensor (21) comes within a prescribed figure, the opening of the heat control valve (20) is decreased by a specified figure, 20% for example. When the concentration of the concentrated absorption solution, which is measured by the concentration sensor (21), exceeds a prescribed figure, 65% for example, the heat supplied to the high temperature regenerator (1) is reduced by decreasing the opening of the heat control valve (20) regardless of the above temperature difference (&Dgr;T).
    Type: Application
    Filed: March 27, 2002
    Publication date: November 7, 2002
    Inventors: Shiguma Yamazaki, Eiichi Enomoto, Yasushi Kamata, Masahiro Furukawa