Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4691260 | Tunnel erase magnetic head assembly | Masaaki Shiga | 1987-09-01 |
| 4622601 | Flexible disc device for media of different track densities | Shin Isozaki, Masaru Sasaki | 1986-11-11 |