Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8949552 | Copying apparatus for copying a recoding medium, a method thereof and a computer program thereof | — | 2015-02-03 |
| 8773961 | Copy-protected optical recording medium, method for driving thereof and method for manufacturing thereof | — | 2014-07-08 |
| 8201265 | Method for generating read error during standard DVD disc manufacturing | — | 2012-06-12 |
| 7200086 | Copy-protected optical recording medium and a method for manufacturing thereof | Byeongseok Oh | 2007-04-03 |