Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886819 | Dihydropyridine derivatives and pharmaceutical composition thereof | Atsuyuki Ashimori, Taizo Ono, Chikara Fukaya, Kazumasa Yokoyama | 1989-12-12 |
| 4832284 | Apparatus for drawing out a leader block in a tape cartridge for a magnetic instrument | — | 1989-05-23 |