Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7992687 | Device for elevator door control based on a detected object | Takaharu Ueda | 2011-08-09 |
| 7950499 | Control apparatus for an elevator responsive to car-mounted position detectors | Ken Okamoto | 2011-05-31 |
| 7918320 | Emergency stop system for elevator | Rikio Kondo, Takaharu Ueda, Hiroshi Kigawa, Ken Okamoto | 2011-04-05 |