Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686771 | Electric motor | Yutaka Ishizuka | 1997-11-11 |
| 5666219 | Rotary polygon mirror type light deflecting system | Yutaka Ishizuka | 1997-09-09 |
| 5661588 | Rotary polygon mirror type light deflecting system | Yutaka Ishizuka | 1997-08-26 |
| 5644084 | Method of measuring natural frequency of motor | Shinji Kinoshita, Mitsuru Ide | 1997-07-01 |