Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8144560 | Method for preventing interchange of optical information carriers | Rain Jilin Zhang | 2012-03-27 |
| 7864644 | Optical storage medium reading/writing method and device with improved reliability | Rain Jilin Zhang, Bin Chye Lim | 2011-01-04 |