Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5263779 | Thrust ball-bearing | Takahiro Sakaguchi, Daihachiro Takasu, Hiroshi Sugahara | 1993-11-23 |
| 5197181 | Motor positioning method | Takahiro Sakaguchi, Daihachiro Takasu, Hiroshi Sugahara | 1993-03-30 |
| 4875119 | Head loading mechanism for flexible disc drive | Yashiko Ando, Yasushi Noda | 1989-10-17 |