Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6060823 | Field emission cold cathode element | Akihiko Okamoto, Hisashi Takemura, Yoshinori Tomihari | 2000-05-09 |
| 5965972 | Field emission cold cathode with buried insulator layer | Yoshino Tomihari, Tadahiro Matsuzaki | 1999-10-12 |
| 5739628 | Field emission type cold cathode device with conical emitter electrode and method for fabricating the same | — | 1998-04-14 |
| 5014243 | Programmable read only memory (PROM) having circular shaped emitter regions | — | 1991-05-07 |