Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8018817 | Method of recording erase pattern information on an optical recording medium, erasing information on the optical recording medium based on the erase pattern information, and optical recording medium therefor | Kyung-geun Lee, Yong-jin Ahn, In-sik Park, Du-seop Yoon | 2011-09-13 |