Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5149922 | Elevator load detector device using movable detector plates | — | 1992-09-22 |
| D275485 | Elevator hoisting engine | Satoru Yokota, Yasutaka Hirano | 1984-09-11 |
| D275486 | Elevator hoisting engine | Satoru Yokota, Yasutaka Hirano | 1984-09-11 |
| D275288 | Elevator hoisting engine | Satoru Yokota, Yasutaka Hirano | 1984-08-28 |
| D275198 | Elevator hoisting engine | Satoru Yokota, Yasutaka Hirano | 1984-08-21 |
| 4422531 | Traction machine for an elevator | Sadayuki Ohtomi, Yasutaka Hirano, Iturou Tangiku | 1983-12-27 |