Patents by Inventor Toshitaka Sakai

Toshitaka Sakai 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).

  • Synergistic composition comprising PGF.sub.2.sub..alpha. and PGE.sub.2
    Patent number: 3978229
    Abstract: A synergistic composition comprising as active ingredients a PGF.sub.2.sub..alpha. compound or its cyclodextrin clathrate thereof and a PGE.sub.2 compound or its cyclodextrin clathrate thereof, at a weight ratio of from about 1:0.33 to about 1:1.
    Type: Grant
    Filed: April 8, 1975
    Date of Patent: August 31, 1976
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Kimiichiro Matsumoto, Tsuneo Fujita, Toshitaka Sakai, Takeshi Tsuda