Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9087976 | Ultrasonic-motor-driving device and ultrasonic motor unit | Kouichi Kugo, Hirono Tsubota | 2015-07-21 |
| 7394745 | Optical pickup device and optical disk playback device provided therewith | — | 2008-07-01 |