Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8053988 | Plasma display device | — | 2011-11-08 |
| 5659524 | Apparatus for controlling tape-ejection in an automobile-installed video cassette recorder | Kyeong-Won Lee | 1997-08-19 |
| 5557056 | Performance evaluator for use in a karaoke apparatus | Jae-Gyoo Hong | 1996-09-17 |
| 5539423 | Three dimensional viewing system for use with a video cassette recorder | Heang-Young Kim | 1996-07-23 |