Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11434845 | Industrial vehicle work guide system | — | 2022-09-06 |
| 11380178 | Photoelectric smoke detector having double-bulkhead darkroom structure | Hong Sun Yu | 2022-07-05 |
| 10071637 | Pulse width modulation resonance converter and charger for vehicle using the same | Jong Pil Kim, Seok Joon Kim, Sam Gyun Kim, Woo Young Lee, June Young Lee | 2018-09-11 |
| 8368764 | Digital photographing apparatus and method for controlling the same | Dong Yi | 2013-02-05 |
| 7339613 | Method of monitoring digital camera capable of informing user of inadequate photographing | Byung-deok Nam | 2008-03-04 |
| 7268817 | Method of automatically focusing using a quadratic function in camera | Soon-hac Hong | 2007-09-11 |