Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6538971 | Optical information recording/reproducing apparatus and method for using both disc cartridges holding 8cm and 12cm disc | Young-sun Seo, Hao-kook Choi, In-sik Park | 2003-03-25 |
| 6512731 | Optical recording/reproducing apparatus and method for using various sizes, and types of recording/reproducing mediums therein | Young-sun Seo, Han-kook Choi, In-sik Park | 2003-01-28 |