Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659331 | Apparatus and method for driving multi-level gray scale display of liquid crystal display device | Choon-Yul Oh | 1997-08-19 |
| 5506476 | Field emission cathode | Gyun-gyoo Lee | 1996-04-09 |
| 5481156 | Field emission cathode and method for manufacturing a field emission cathode | Jong-deuk Lee, Hyeong-su Woo, Gang-ok Lee | 1996-01-02 |
| 5420054 | Method for manufacturing field emitter array | Gang-ok Lee | 1995-05-30 |