Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866695 | Access control system for rotating an information storage disc at a constant linear velocity | Motoyuki Suzuki | 1989-09-12 |
| 4841511 | Constant linear velocity disk rotating apparatus | Motoyuki Suzuki, Akio Fukushima | 1989-06-20 |