Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6133678 | Field emission element | Takao Kishino, Kazuhiko Tsuburaya, Takahiro Niiyama, Masaharu Tomita | 2000-10-17 |
| 5955832 | Vacuum envelope having niobium oxide gate electrode structure | Masaharu Tomita, Shigeo Itoh, Tsuyoshi Inukai | 1999-09-21 |