Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469979 | METHOD FOR DETECTING SERVO ERROR, APPARATUS THEREFOR, DISK WHICH MAINTAINS QUALITY OF SERVO ERROR SIGNAL, METHOD OF CONTROLLING SERVO OF DISK RECORDING/REPRODUCING APPARATUS, METHOD OF DETECTING TRACKING ERROR, AND METHOD OF DETECTING TILT ERROR | Seong-sin Joo, In-sik Park, Byung-in Ma, Jang-hoon Yoo, Jung-wan Ko +2 more | 2002-10-22 |
| 6442124 | Compatible optical pick-up apparatus for recording and reproducing information from recording media having different formats | Yong-hoon Lee, In-shik Park | 2002-08-27 |
| 6430139 | Objective lens for high-density optical focusing, and optical pickup using the same | Jang-hoon Yoo, Kun-ho Cho, Seung-tae Jung, Chul-woo Lee, Dong-Ho Shin | 2002-08-06 |
| 6359850 | Optical pickup having catadioptric objective lens | Chul-woo Lee, Kun-ho Cho, Yong-hoon Lee | 2002-03-19 |