Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824931 | Verification photomask | Kun Liu, Ching-Ming Chen | 2004-11-30 |
| 6791666 | Variable transmission focal mask for lens heating compensation | Yuan Yu | 2004-09-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824931 | Verification photomask | Kun Liu, Ching-Ming Chen | 2004-11-30 |
| 6791666 | Variable transmission focal mask for lens heating compensation | Yuan Yu | 2004-09-14 |