Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7895451 | Information recording medium, recording/reproducing apparatus, and recording/reproducing method with write-protection function | Sung-hee Hwang | 2011-02-22 |
| 7173891 | Information storage medium and method of recording and/or reproducing with respect to the medium | In-sik Park, Du-seop Yoon | 2007-02-06 |