Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7938231 | Elevator apparatus having independent second brake control | Takaharu Ueda, Hiroshi Kigawa | 2011-05-10 |
| 7931127 | Elevator apparatus | Hiroshi Kigawa, Takaharu Ueda | 2011-04-26 |
| 7918320 | Emergency stop system for elevator | Takaharu Ueda, Hiroshi Kigawa, Ken Okamoto, Takashi Yumura | 2011-04-05 |