Patents by Inventor Tsukasa Kuwamura

Tsukasa Kuwamura 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).

  • Phenylacetic ester derivatives and process for preparing the same
    Patent number: 4560785
    Abstract: Novel phenylacetic ester derivatives (I) ##STR1## are produced by reacting ketoprofene with alkylene glycol compounds. The derivatives (I) are useful as a nonsteroidal antiphlogistic and analgesic agent with very reduced side effects comparing with sole use of ketoprofene.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: December 24, 1985
    Assignee: SS Pharmaceutical Co., Ltd.
    Inventors: Haruyoshi Honda, Susumu Sato, Kazuo Isomae, Junji Ookawa, Tsukasa Kuwamura