Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4734631 | Step motor control | Yasushi Ema | 1988-03-29 |
| 4734632 | Driving device for a stepping motor | Yasushi Ema | 1988-03-29 |
| 4480931 | Electronic typewriter | Takeshi Itoh | 1984-11-06 |