Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890177 | Guide drum assembly with built-in motor having floating rotor | Hiroshi Katoh, Hiromi Taguchi | 1989-12-26 |
| 4654738 | Head drum construction including magnetically shielded record and reproduce signal paths | Hiroshi Kato, Koichi Sugama | 1987-03-31 |