Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6492790 | Driving system for driving AC motor | Toshifumi Yoshikawa, Naoto Ohnuma, Toshisuke Mine, Takao Kishikawa | 2002-12-10 |
| 6481531 | Elevator communications apparatus | Hirokazu Nagura, Hiromi Inaba, Atsuya Fujino | 2002-11-19 |
| 6408986 | Charger for elevator call devices | Hideki Ayano, Hiromi Inaba, Atsuya Fujino | 2002-06-25 |