Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8000620 | Image forming apparatus and transfer method thereof | Jeong Hwan Kim, Jin Cheol Kim, Hyun-sun Jung | 2011-08-16 |
| 7894749 | Image forming apparatus capable of resetting and decreasing a surface potential of a photosensitive member | Hyun-sun Jung, Jin Cheol Kim | 2011-02-22 |
| 7463840 | Electro-photographic image forming apparatus and method for determining a charging voltage | Jin Cheol Kim, Joong-gwang Shi | 2008-12-09 |