Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11118969 | Electron tube comprising a focusing electrode part having a light passage portion and an electron passage portion | Atsuhito Fukasawa, Yasuyuki Egawa, Shigeru Ichikawa | 2021-09-14 |
| 7692384 | Electron tube | Hiroyuki Kyushima, Motohiro Suyama, Suenori Kimura, Atsuhito Fukasawa, Yoshihiko Kawai +2 more | 2010-04-06 |
| 7525249 | Electron tube with electron-bombarded semiconductor device | Motohiro Suyama, Hiroyuki Kyushima, Suenori Kimura, Atsuhito Fukasawa, Yoshihiko Kawai +2 more | 2009-04-28 |
| 7491918 | Electron beam detection device and electron tube | Hiroyuki Kyushima, Motohiro Suyama, Suenori Kimura, Yoshihiko Kawai, Atsuhito Fukasawa | 2009-02-17 |
| 7176429 | Electron tube | Motohiro Suyama, Hiroyuki Kyushima, Atsuhito Fukasawa, Yoshihiko Kawai, Yasuyuki Egawa +2 more | 2007-02-13 |
| 7002132 | Photocathode, electron tube, and method of assembling photocathode | Yasuyuki Egawa, Toru Hirohata, Minoru Niigaki | 2006-02-21 |
| 6818885 | Photodetector | Toru Hirohata | 2004-11-16 |
| 6020684 | Electron tube with improved airtight seal between faceplate and side tube | Toshimitsu Nagai, Atsushi Kibune, Yutaka Hasegawa, Shigeru Ichikawa, Hitoshi Kishita +2 more | 2000-02-01 |
| 6008579 | Electron tube with improved airtight seal between faceplate and side tube | Norio Asakura, Motohiro Suyama, Toshimitsu Nagai | 1999-12-28 |
| 5471051 | Photocathode capable of detecting position of incident light in one or two dimensions, phototube, and photodetecting apparatus containing same | Minoru Niigaki, Katsuyuki Kinoshita, Toru Hirohata, Tuneo Ihara, Masami Yamada +2 more | 1995-11-28 |
| 5336902 | Semiconductor photo-electron-emitting device | Minoru Nigaki, Tuneo Ihara, Toru Hirohata, Tomoko Suzuki, Kimitsugu Nakamura +4 more | 1994-08-09 |