Patents by Inventor Atsunobu Ishihara

Atsunobu Ishihara 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).

  • Clathrate compounds of prostaglandins or their analogues with cyclodextrin
    Patent number: 4054736
    Abstract: Clathrate compounds of prostaglandins or their analogues with cyclodextrins and a method of manufacture thereof. The compounds are useful as labor inducing agents, contraceptives, hypotensives and remedies for ulcers and asthma.
    Type: Grant
    Filed: December 5, 1973
    Date of Patent: October 18, 1977
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Masaki Hayashi, Atsunobu Ishihara