Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11142429 | Emergency stop device for an elevator car | Naohiro Shiraishi, Kotaro Fukui, Eiji Ando | 2021-10-12 |
| 11136220 | Elevator device | Rikio Kondo, Morishige Minobe | 2021-10-05 |
SW
Seiji Watanabe
Overall (2021): #113,878 of 548,734Top 25%
2
Patents 2021