Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7041934 | Micro-welder | Yeol-Hwa Lee, Jong Hak CHOI | 2006-05-09 |
| 6837614 | Heat-flux gage, manufacturing method and manufacturing device thereof | Yeol-Hwa Lee, Jong Hak CHOI | 2005-01-04 |