Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11736308 | Device and method for providing automatic participation chat room | Eui-Young Chung, Seong-Lyun Kim, Sang Hyup Lee, Gi Lee, Tae Yang Jeong | 2023-08-22 |
| 8987037 | Methods of manufacturing a solar cell | Yong-Duck CHUNG, Won Seok Han | 2015-03-24 |
| 8647916 | Method for manufacturing solar cell using a single target | Kyung-Hyun Kim, Je Ha Kim, Hae-Won Choi, Yong-Duck CHUNG | 2014-02-11 |
| 7818697 | Method for improving yield of a layout and recording medium having the layout | — | 2010-10-19 |
| 5889308 | Semiconductor device having an electrostatic discharging protection circuit using a non-ohmic material | Ki Won Hong, Nam Ho Kim | 1999-03-30 |