Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5852342 | Directly heated cathode structure | Chang-Seob Kim, Bong-uk Jeong, Sang Kyun Kim | 1998-12-22 |
| 5721469 | Electron gun for cathode ray tubes | Sang Kyun Kim, Chang-Seob Kim, Bong-Wook Jung | 1998-02-24 |
| 5703429 | Directly heated cathode structure | Chang-Seob Kim, Sang Kyun Kim, Bong-uk Jeong | 1997-12-30 |
| 5701052 | Directly heated cathode structure | Chang-Seob Kim, Sang Kyun Kim, Bong-uk Jeong | 1997-12-23 |
| 5668434 | Directly heated cathode for cathode ray tube | Chang-Seob Kim, Bong-uk Jeong, Sang Kyun Kim, Sang-uk Shin | 1997-09-16 |