Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8425021 | Ink cartridge for printer | Kwang-Choon Chung, Nam-Boo Cho, Young Chul Shin, Baek Song Heo, In-Ha Kim +1 more | 2013-04-23 |
| 8162441 | Ink-cartridge loading/unloading apparatus | Jeong-Guck Lee, Hae Sung Jung, Ki-Yong Kim, Kwang-Choon Chung | 2012-04-24 |
| 8128211 | Ink-cartridge for printers | Kwang-Choon Chung, Nam-Boo Cho, Young Chul Shin, Bae-Song Heo | 2012-03-06 |
| 7997708 | Ink-cartridge for printers and ink refilling method | Kwang-Choon Chung, Nam-Boo Cho, Young Chul Shin, Baek Song Heo | 2011-08-16 |
| 7686436 | Ink recharging system for ink cartridge, bulk ink cartridge used in said system, and ink recharging method using them | Hae Sung Jung, Kwang-Choon Chung, In-Ha Kim, Ki-Hun Kang, Hyung-Ho Gil | 2010-03-30 |
| 7661804 | Ink recharge system and ink recharge method for ink cartridge | Kwang-Choon Chung, Hae Sung Jung, Ki-Hun Kang, Ki-Yong Kim, Jeong-Guck Lee +1 more | 2010-02-16 |
| D422632 | Ink cartridge refill case | Kwang-Choon Chung, Young Ho Chung, Nam Bu Cho, Ju Yeon Lee, Ju-Jin Choi | 2000-04-11 |