Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863227 | Light scanning device | — | 1989-09-05 |
| 4859011 | Light scanning device | — | 1989-08-22 |
| 4846539 | F.theta. lens system for use in light scanning device | Yasushi Takahashi | 1989-07-11 |
| 4836630 | Optical scanning system having a surface inclination correction function | — | 1989-06-06 |