Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6471011 | Elevator communication controller and communication control method | Hiroshi Ando, Hiroshi Gokan, Nobukazu Takeuchi, Shougo Tatsumi | 2002-10-29 |
| 6467583 | Communications control system for elevators | Nobukazu Takeuchi, Shougo Tatsumi | 2002-10-22 |
| 6450298 | Communications control system for elevators | Hiroshi Gokan, Junya Tanaka, Keita Yamaguchi | 2002-09-17 |
| 6349795 | Communication device for elevator control system | Shougo Tatsumi | 2002-02-26 |