Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5734636 | Song recording medium for video-song accompaniment and a recording and reproducing method and reproducing apparatus adopting the same | Deok-hyun Lee | 1998-03-31 |
| 5633688 | Image superimposing apparatus for superimposing the encoded color televison signal with the external composite video signal | Hae-min Choi, Kwang-Sik Choi | 1997-05-27 |
| 5561649 | Disk recording medium and reproduction method and apparatus thereof | Rae-hwan Lee, Hwa-jin Jeon, Kwang-Sik Choi, Hong-Soon Park, Sang-hwa Yun +5 more | 1996-10-01 |
| 5546368 | Disk recording medium and reproduction method and apparatus thereof | Rae-hwan Lee, Hwa-jin Jeon, Kwang-Sik Choi, Hong-Soon Park, Sang-hwa Yun +5 more | 1996-08-13 |
| D294554 | Microwave oven | — | 1988-03-08 |
| D293541 | Microwave oven | — | 1988-01-05 |
| D290082 | Microwave oven | — | 1987-06-02 |
| D280968 | Microwave oven | — | 1985-10-15 |