Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5866438 | Field emission type electron emitting device and method of producing the same | Junji Itoh, Yoichi Ryokai, Masato Nishizawa, Kazuo Matsuzaki | 1999-02-02 |
| 5793153 | Field emission type electron emitting device with convex insulating portions | Junji Itoh, Yoichi Ryokai, Masato Nishizawa, Kazuo Matsuzaki | 1998-08-11 |