Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6407500 | Electrode structure in flat vacuum envelope | Yoshitaka Kagawa | 2002-06-18 |
| 6218778 | Field emission device having interlayer connections | Masaharu Tomita, Shigeo Itoh, Kazuyuki Yano | 2001-04-17 |
| 6133678 | Field emission element | Takao Kishino, Hisataka Ochiai, Takahiro Niiyama, Masaharu Tomita | 2000-10-17 |
| 5955850 | Field emission display device | Satoshi Yamaguchi, Haruhisa Hirakawa, Masaharu Tomita, Tatsuo Yamamura | 1999-09-21 |
| 5650689 | Vacuum airtight device having NbN electrode structure incorporated therein | Shigeo Itoh, Teruo Watanabe, Yoshihiko Hirata, Susumu Takada, Hiroshi Nakagawa | 1997-07-22 |
| 5612587 | Field emission cathode | Shigeo Itoh, Teruo Watanabe, Junji Itoh, Seigo Kanemaru | 1997-03-18 |
| 5144198 | Electron feeder for flat-type luminous device | Shigeo Itoh, Mikio Yokoyama | 1992-09-01 |
| 5032761 | Electron feed structure for flat-type luminous device | Shigeo Itoh, Mikio Yokoyama | 1991-07-16 |