Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10640331 | Elevator safety device and elevator system | Seiji Watanabe, Naohiro Shiraishi | 2020-05-05 |
MK
Masayuki Kakio
Overall (2020): #362,877 of 565,922Top 65%
1
Patents 2020