Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5331647 | Communication apparatus having function to record communication history | Toshibumi Seki, Shinsuke Tamura | 1994-07-19 |
| 5298696 | Elevator car assignment using a plurality of calculations | Susumu Kubo | 1994-03-29 |