Patents by Inventor Kazushi Nagao

Kazushi Nagao 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).

  • Proline derivatives
    Patent number: 4977179
    Abstract: Disclosed is a proline derivative of the formula ##STR1## or a pharmaceutically acceptable salt thereof. These derivatives have useful utilities such as activity of inhibiting angiotensin converting enzyme.
    Type: Grant
    Filed: April 19, 1989
    Date of Patent: December 11, 1990
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Shizuo Nakamura, Masatoshi Inai, Makoto Inoue, Kazushi Nagao, Yoshiaki Tsuda