Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6002658 | Disc drive | Hiroshi Aso, Kouichi Kuroiwa, Seiji Nakayama, Mitsunori Nakamura | 1999-12-14 |
| 5448023 | Track ball coordinate data inputting device | — | 1995-09-05 |
| 5386089 | Track ball coordinate data inputting device | — | 1995-01-31 |