Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9714158 | Elevator counterweight device | Hideki Nakamura | 2017-07-25 |
| 9598264 | Elevator safety device and elevator safety device mounting method | Hideki Nakamura | 2017-03-21 |
| 9409748 | Elevator safety device and elevator safety device mounting method | Hideki Nakamura | 2016-08-09 |
| 9382094 | Elevator refurbishment method | Hideki Nakamura | 2016-07-05 |