Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7435468 | Multi-layer structure and method of drawing microscopic structure therein, optical disc master and method of fabricating the same using the multi-layer structure, and optical disc manufactured using the optical disc master | Joo Ho Kim, In-sik Park, Masashi Kuwahara, Junji Tominaga | 2008-10-14 |