Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885652 | Disk cartridge | Masayuki Kuroda | 1989-12-05 |
| 4879621 | Disk restraint | Davis W. Chamberlin, Osamu Koizumi | 1989-11-07 |
| 4875128 | Disc cartridge | Arthur K. Kato, Kiyoshi Ohmori, Keisuke Fujiwara, Yutaka Soda | 1989-10-17 |
| 4843512 | Recording disk centering hub | Larry Dean Moore, David M. Perry | 1989-06-27 |