Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9082578 | Electron emission element and method for manufacturing the same | Jin Seok Park, Won-joo Kim, Sang-Hyuk Lee | 2015-07-14 |
| 8928215 | Electron emission element and method for manufacturing the same | Jin Seok Park, Won-joo Kim, Sang-Hyuk Lee | 2015-01-06 |