Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5258586 | Elevator control system with image pickups in hall waiting areas and elevator cars | Masato Suzuki, Masachika Yamazaki, Hiromi Inaba, Kiyoshi Nakamura, Yoshio Sakai +3 more | 1993-11-02 |