Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639698 | Optical scanning unit with rotatable hologram disc | Hwan-young Choi, Sung Min Cho, Jae-Youn Eum, Jin-seung Choi, Young Il Kim +1 more | 2003-10-28 |
| 6529296 | Hologram scanner | — | 2003-03-04 |