Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6560179 | Recording and reproducing apparatus having copy-protection function and method thereof | Sang On Park | 2003-05-06 |
| 6477126 | Optical recording medium and method of assigning its spare area | Yong Cheol Park | 2002-11-05 |
| 6453384 | Spare area management method of optical recording medium | Yong Cheol Park | 2002-09-17 |
| 6355872 | Random play control method and apparatus for disc player | Sang On Park | 2002-03-12 |
| 5293783 | Differential power transmission device for tape recorders | — | 1994-03-15 |