Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7470000 | Ink jet head substrate, ink jet head, and method of manufacturing an ink jet head substrate | — | 2008-12-30 |
| 6390581 | Ink jet printer head | Chang Woo Lee, Chang-youl Moon, Jae-ho Moon | 2002-05-21 |