Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496473 | Disc cartridge with mode selecting means | Won Hyoung Cho | 2002-12-17 |
| 6477138 | Disc cartridge with gearing shutters and disc driver for driving the same | Won Hyoung Cho, Hong Soo Park | 2002-11-05 |
| 6426938 | Disc protection casing and drive for receiving the same | Won Hyoung Cho | 2002-07-30 |
| 6407981 | Disc cartridge adapter and disc driver for driving the same | Won Hyoung Cho, Hong Soo Park | 2002-06-18 |