Patents by Inventor Ryohta Tatezaki

Ryohta Tatezaki 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).

  • Immunoactivator
    Patent number: 4564615
    Abstract: An immunoactivator comprising an effective amount of a thiazolobenzoxazine derivative of the formula, or its salt ##STR1## wherein R.sup.1 represents a hydrogen atom, carboxyl group or lower alkoxycarbonyl group, R.sup.2 represents a substituted or unsubstituted phenyl group, lower alkyl group or furyl group, and R.sup.3 represents a hydrogen atom or lower alkoxy group.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: January 14, 1986
    Assignee: SS Pharmaceutical Co., Ltd.
    Inventors: Hideaki Matsuda, Ryohta Tatezaki, Hiroyuki Mizuno, Tatsuhiko Katori