Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6888261 | Alignment mark and exposure alignment system and method using the same | Won-sang Song, Seong-Il Kim, Sang-Il Han, Chang-Hoon Lee | 2005-05-03 |
| 6667253 | Alignment mark and exposure alignment system and method using the same | Won-sang Song, Seong-II Kim, Sang-II Han, Chang-Hoon Lee | 2003-12-23 |
| 5733690 | Reticle for fabricating semiconductor device | Seong-kil Jeong, Moon Song, Jeong Yeal Kim | 1998-03-31 |
| 5729856 | Semiconductor wafer cleaning apparatus | Dong-Heui Jang, Dong Hyun Kim, Se-Yeon Jang | 1998-03-24 |