Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5481156 | Field emission cathode and method for manufacturing a field emission cathode | Jong-deuk Lee, Hyeong-su Woo, Sun-jeong Choi | 1996-01-02 |
| 5420054 | Method for manufacturing field emitter array | Sun-jeong Choi | 1995-05-30 |