Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9809419 | Elevator apparatus | Yasushi Otsuka | 2017-11-07 |
| 9708158 | Multi-car elevator using an exclusion zone and preventing inter-car collision | Masayuki Kakio, Kiyoshi Funai, Eiji Ando | 2017-07-18 |
| 9676591 | Elevator apparatus | Hirokazu Banno, Yasushi Otsuka | 2017-06-13 |