Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11649140 | Rail installation assist device, rail installation assist method, rail installation assist system, and computer program product | Yutaka Maruyama, Yoshihiko Nakada, Yoshinobu Ishikawa | 2023-05-16 |
| 5690188 | Elevator door system | Yuichiro Kimura | 1997-11-25 |