Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8546054 | Toner for electrophotography | Jae-hyeuk Jeong, Duck-hee Lee, Jung-ik Choi, Soon-Cheol Jeong, Hae-ree Joo | 2013-10-01 |
| 7349654 | Developer cartridge for a wet-type image forming apparatus | Hae-ree Joo, Jung Wook Kim, Ki-won Seok, Kyung-yol Yon, Min-young Cheong | 2008-03-25 |
| 7248060 | Test apparatus for evaluating electrical properties of liquid toner and test method for the same | Jung Wook Kim, Ki-won Seok, Kyung-yol Yon, Hae-ree Joo, Min-young Cheong | 2007-07-24 |