Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6977982 | Differential phase detection device and tracking error signal detection apparatus using the same | Byung-in Ma, In-sik Park, Sung-ro Go, Soo-yul Jung, Chang-jin Yang | 2005-12-20 |
| 6885625 | Near-field optical storage medium and optical data storage system therefor | Chul-woo Lee, Kun-ho Cho, Dong-Ho Shin, Seung-tae Jung, Byeong-Ho Park +3 more | 2005-04-26 |