Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6585355 | Ink-jet printhead having hemispherical ink chamber and method for manufacturing the same | Sang Wook Lee, Yong-soo Oh | 2003-07-01 |
| 6561625 | Bubble-jet type ink-jet printhead and manufacturing method thereof | Doo-jin Maeng, Keon Kuk, Yong-soo Oh, Sang Wook Lee | 2003-05-13 |