Issued Patents 2003
Showing 1–1 of 1 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, In-sik Park, Myoung-Jong Song | 2003-03-25 |