Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6786212 | Method for preventing a reverse rotation of an engine | — | 2004-09-07 |
| 6775815 | Exposure method for correcting line width variation in a photomask | Won-tai Ki, Seung-hune Yang | 2004-08-10 |