Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11530565 | Elevator car door apparatus | Shogo Morinaga | 2022-12-20 |
| 10207900 | Elevator car door apparatus | — | 2019-02-19 |
| 9656835 | Elevator car door locking apparatus | — | 2017-05-23 |
| 8973714 | Door engagement device for elevator | Kenji Utsunomiya, Hiroshi Kigawa, Naotoshi Ito | 2015-03-10 |