Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4684864 | Driving circuit of stepping motor for floppy disk drive | — | 1987-08-04 |
| 4636905 | Voltage monitoring system for an electric power source of a disc drive | Shoji Takahashi | 1987-01-13 |