Patents by Inventor Yoshinori Inaoka

Yoshinori Inaoka 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).

  • Enkephalinase B inhibitors, their preparation, and pharmaceutical compositions containing the same
    Patent number: 4804676
    Abstract: Propioxatins A and B, which have the formula: ##STR1## wherein R represents a hydrogen atom or a methyl group, can be prepared by cultivating a suitable strain of Kitasatosporia, e.g. Kitasatosporia sp. SANK 60684 (FERM-P 7581). They can be salified to give pharmaceutically acceptable salts. The compounds are active as enkephalinase B inhibitors and are thus capable of enhancing enkephalin activity in vivo.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: February 14, 1989
    Assignee: Sankyo Company Limited
    Inventors: Yoshinori Inaoka, Shuji Takahashi, Hidetsune Tamaoki, Ryuzo Enokita