Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648652 | Optical focus evaluation and focus adjustment methods, focus evaluation and focus adjustment apparatus, and screen apparatus | Takaomi Sekiya | 1997-07-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648652 | Optical focus evaluation and focus adjustment methods, focus evaluation and focus adjustment apparatus, and screen apparatus | Takaomi Sekiya | 1997-07-15 |