Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883802 | 4-piperidinecarboxamide derivatives | Kunihiro Ninomiya, Ken Saito, Akihiro Tobe, Issei Nitta | 1989-11-28 |
| 4880819 | 4-aminopyridine derivatives for improving impaired brain function | Kunihiro Ninomiya, Ken Saito, Akihiro Tobe, Issei Nitta | 1989-11-14 |