Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7652865 | Earthing device which needs not be buried under ground | Jea Wook Woo, Jin Seok Huh, Seungjoon Ahn, Chul Geun Park, Ho Sub Son +2 more | 2010-01-26 |
| 5969816 | Direction switched mode-locked laser gyroscope | Byoung Y. Kim, Sun Hyok Chang | 1999-10-19 |
| 5641705 | Device isolation method of semiconductor device | Dong-Ho Ahn, Yu-Gyun Shin, Yun-Gi Kim | 1997-06-24 |