Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833156 | Treating amnesia with a pyrrolidone derivative | Yuzi Munezuka, Shinichiro Kato | 1989-05-23 |
| 4803301 | Process for producing optically active 2-phenoxypropionic acid | Yasushi Nii | 1989-02-07 |