Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864198 | Method of and apparatus for driving three-phase D.C. brushless motor | Shigeto Takase, Kentaro Ushioda | 1989-09-05 |
| 4807790 | Paper feeding method and apparatus | Kentaro Ushioda | 1989-02-28 |