Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6575801 | Method for fabricating cathode in color cathode ray tube | Byoung Doo Ko, Young Deog Koh, Dawa Yashiro, Matsuo Tosihiro, Huruya Koushi +1 more | 2003-06-10 |
| 6181058 | Cathode in electron tube with actinoid metal(s) or compound(s) thereof | — | 2001-01-30 |
| 5994827 | Focusing electrode structure | Hyun Cheol KIM, Sung Gi An | 1999-11-30 |
| 5552661 | Electron gun for cathode tube | — | 1996-09-03 |
| 5402035 | Cathode structure for an electron tube | — | 1995-03-28 |
| 5291096 | Cathode structure for a cathode-ray tube | — | 1994-03-01 |
| 5289076 | Cathode structure for a cathode ray tube | — | 1994-02-22 |