Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884856 | Polygonal mirror and method of making same | Hatsuichi Takeyasu, Kenichi Sakata | 1989-12-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884856 | Polygonal mirror and method of making same | Hatsuichi Takeyasu, Kenichi Sakata | 1989-12-05 |