Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6462347 | Charge exchanger, ion implantation system comprising the charge exchanger, and method of controlling the rate at which the polarity of ions is changed | — | 2002-10-08 |
| 6200903 | Method of manufacturing semiconductor devices | Sung Kyu Han, Yeon-sang Hwang, Dong-Ha Lim, Jung Ki Kim | 2001-03-13 |
| 5494827 | Method using azide catalyst for peroxyoxalate chemiluminescence reaction | Seung-Hyeon Cha | 1996-02-27 |