Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9892350 | Image-forming apparatus having internal security paper detection unit and image-forming method thereof | Min Sik Kim, Seung Jin Ryu, Han-Jun Yoon, Do Hoon Lee, Nak Jun JEONG | 2018-02-13 |
| 9721198 | Image-forming apparatus having external security paper detection unit and image-forming method thereof | Min Sik Kim, Seung Jin Ryu, Han-Jun Yoon, Do Hoon Lee, Nak Jun JEONG | 2017-08-01 |