Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860324 | Information data recovering apparatus | — | 1989-08-22 |
| 4837450 | Apparatus for reading a film image with controllable illumination and threshold value | Masahide Kotera | 1989-06-06 |