Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6903336 | Polarity exchanger and ion implanter having the same | Gyeong-Su Keum, Gum-Hyun Shin, Hyung-Sik Hong, Kyue-sang Choi | 2005-06-07 |
| 6858854 | Method and apparatus for measuring inclination angle of ion beam | Gyeong-Su Keum, Jae-Im Yun, Hyung-Sik Hong, Wan-Goo Hwang | 2005-02-22 |