Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6760297 | Substrate unit for optical head and method for manufacturing the same | Yoshiharu Fujioka, Akio Onuki, Kunio Omi, Futoshi Ishii | 2004-07-06 |
| 4962584 | Manufacturing method for a magnetic disk recording reproducing head device | Yoshiharu Fujioka, Shoji Tsutaki | 1990-10-16 |
| 4910621 | Magnetic head device having sloped sliding surface which is formed thermally curved | Yoshiharu Fujioka, Shoji Tsutaki | 1990-03-20 |