Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6094004 | Focusing electrode in electron gun for color cathode ray tube | Youn Jin Kim, Hyun Cheol KIM, Sung Ho Cho | 2000-07-25 |
| 5994827 | Focusing electrode structure | Hyun Cheol KIM, Gyeong Sang Lee | 1999-11-30 |
| 5869925 | Electron gun with focusing electrodes | Hyun Cheol KIM, Won Hyun Kim, Hi Won Yoon, Sung Ho Cho | 1999-02-09 |
| 5574331 | In-line electron gun for a color picture tube | Hyun-Chul Kim, Sung Ho Cho, Hee Sook Lee, Won Hyun Kim, Hee Won Yun | 1996-11-12 |