Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7686436 | Ink recharging system for ink cartridge, bulk ink cartridge used in said system, and ink recharging method using them | Hae Sung Jung, Chang-Soo Yu, Kwang-Choon Chung, In-Ha Kim, Hyung-Ho Gil | 2010-03-30 |
| 7661804 | Ink recharge system and ink recharge method for ink cartridge | Kwang-Choon Chung, Chang-Soo Yu, Hae Sung Jung, Ki-Yong Kim, Jeong-Guck Lee +1 more | 2010-02-16 |