Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4562503 | Perpendicular magnetic recording head | Yoshiharu Fujioka, Akio Onuki | 1985-12-31 |
| 4531170 | Combination magnetic head | Akio Onuki | 1985-07-23 |
| 4423550 | Composite magnetic head structure and process for manufacturing the same | Yoshiharu Fujioka | 1984-01-03 |