Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497306 | Elevator information communication system | Akihito Mori, Hideyo Ujihara | 2002-12-24 |
| 6488127 | Elevator information communication system | Akihito Mori, Hideyo Ujihara | 2002-12-03 |
| 6427808 | Elevator information communication system | Akihito Mori, Hideyo Ujihara | 2002-08-06 |