Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871740 | Glycyrrhetic acid derivatives and use thereof | Masayasu Kurono, Ryoichi Unno, Hiromoto Kimura, Mitsuru Oka, Keiko Hasegawa +4 more | 1989-10-03 |
| 4734411 | Pyrrolizidine compounds, salts thereof, process for the preparation of same and pharmaceutical agents comprising same | Masayasu Kurono, Yasuaki Kondo, Takuji Yamaguchi, Toshinao Usui, Ryoichi Unno +7 more | 1988-03-29 |