Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8929003 | Projection lens unit for pico-projector | Hee-joong Lee, Jin Ho Kim, Seung Ki Hong | 2015-01-06 |
| 8693112 | Projection lens unit for pico-projector | Hee-joong Lee, Jin Ho Kim, Seung Ki Hong | 2014-04-08 |
| 8284493 | Projection lens unit for pico-projector | Hee-joong Lee, Young-Hun Lee, Seung Ki Hong | 2012-10-09 |
| 6323907 | Frequency converter | — | 2001-11-27 |
| 6212507 | Fuzzy inference circuit using charge coupled device | — | 2001-04-03 |
| 5995675 | Defect compensator for solid-state image pickup device | — | 1999-11-30 |