Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4516664 | Apparatus for controlling an A-C powered elevator | Hiroyuki Ikejima | 1985-05-14 |
| 4288729 | Control system for D.C. electric motor | Eiki Watanabe | 1981-09-08 |
| 4238005 | Deceleration controlling apparatus for elevator | Eiki Watanabe | 1980-12-09 |
| 4209082 | Elevator control apparatus | Eiki Watanabe | 1980-06-24 |