Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490227 | Device and method for detecting position of movable body by using ultrasonic waves | Katsumi Nagai | 2002-12-03 |
| 6463009 | Position detecting device and industrial vehicle having the position detecting device | Katsumi Nagai | 2002-10-08 |
| 6323579 | Ultrasonic driving motor | Hisao Kurata, Keichi Sato, Shoji Takahashi, Yuji Maeda | 2001-11-27 |