Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4438371 | Source of charged particles beam | Masaaki Futamoto, Ushio Kawabe, Tohru Ishitani, Hifumi Tamura | 1984-03-20 |
| 4379250 | Field emission cathode and method of fabricating the same | Shigehiko Yamamoto, Hideo Todokoro, Susumu Kawase, Yasuharu Hirai | 1983-04-05 |
| 4193013 | Cathode for an electron source and a method of producing the same | Masaaki Futamoto, Ushio Kawabe, Tsutomu Komoda, Shigehiko Yamamoto | 1980-03-11 |