Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6511632 | Cathode material of electron beam device and preparation method thereof | Jong-Seo Choi, Yoon-Chang Kim, Kyu-Nam Joo, Nikolay Osaulenko, Oleg Kostantinovich Kultashev | 2003-01-28 |