Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6426933 | Optical pickup apparatus having polarizing phase plates | Seong Yun Jeong | 2002-07-30 |
| 6379767 | Optical recording medium with multiple recording layers and fabricating method thereof | Jin Yong Kim | 2002-04-30 |