Patents by Inventor Yuzi Baba

Yuzi Baba 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).

  • Lubricant for refrigerant
    Patent number: 5032305
    Abstract: A lubricant composition for refrigerators using Flon 134a comprises at least 80 percent by weight of a specific type of polyoxethylene glycol dialkyl ether having a kinematic viscosity of 6 to 500 cSt at 40 degree centigrade.
    Type: Grant
    Filed: April 13, 1990
    Date of Patent: July 16, 1991
    Assignee: Asahi Denka Kogyo K.K.
    Inventors: Tamiji Kamakura, Yuzi Baba, Kimiyoshi Namiwa