Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10340129 | Microchannel plate and electron multiplier | Takaaki Nagata, Yasumasa Hamana, Hajime Nishimura | 2019-07-02 |
| 9824844 | Transmission mode photocathode | Takaaki Nagata, Yasumasa Hamana | 2017-11-21 |
| 9299530 | Electron tube | Yasumasa Hamana, Takaaki Nagata | 2016-03-29 |
| 9293308 | Electron tube | Takaaki Nagata, Yasumasa Hamana | 2016-03-22 |
| 9257266 | Micro-channel plate, method for manufacturing micro-channel plate, and image intensifier | Yasumasa Hamana, Takaaki Nagata | 2016-02-09 |
| 8796923 | Photocathode | Toshikazu Matsui, Yasumasa Hamana, Yoshihiro Ishigami, Daijiro Oguri | 2014-08-05 |
| 7495392 | Electron multiplier unit including first and second support members and photomultiplier including the same | Yousuke Oohashi, Keiichi Ohishi, Masuo Ito | 2009-02-24 |
| 7492097 | Electron multiplier unit including first and second support members and photomultiplier including the same | Yousuke Oohashi, Keiichi Ohishi, Masuo Ito | 2009-02-17 |
| 6381305 | X-ray tube having a hood electrode | Tomoyuki Okada, Masuo Ito, Yoshitoshi Ishihara, Tsutomu Nakamura, Tutomu Inazuru | 2002-04-30 |
| 5780967 | Electron tube with a semiconductor anode outputting a distortion free electrical signal | Motohiro Suyama, Masuo Ito | 1998-07-14 |
| 5736731 | Photomultiplier tube comprising a second dynode having a saturated secondary electron emission ratio | Hiroyuki Kyushima, Takayuki Omura, Suenori Kimura, Yousuke Oohashi, Masuo Ito | 1998-04-07 |
| 5619099 | Electron tubes using insulation material containing little alkali metal | Masayoshi Sahara, Atushi Ishikawa, Chiyoshi Okuyama, Junichi Takeuchi | 1997-04-08 |
| 5598061 | Photomultiplier | Yoshio Fujita, Keiichi Ohishi | 1997-01-28 |
| 5561347 | Photomultiplier | Hiroyuki Hanai, Takeo Hashimoto, Shinji Suzuki, Yasushi Watase, Masumi Tachino | 1996-10-01 |
| 5420476 | Photomultiplier including election lens electrode | Takeo Hashimoto, Hiroaki Washiyama, Tomihiko Kuroyanagi | 1995-05-30 |
| 5363014 | Photomultiplier | — | 1994-11-08 |
| 5336902 | Semiconductor photo-electron-emitting device | Minoru Nigaki, Tuneo Ihara, Toru Hirohata, Tomoko Suzuki, Norio Asakura +4 more | 1994-08-09 |
| 5210403 | Radiation detecting device with a photocathode being inclined to a light incident surface | Masuo Ito, Seiji Suzuki, Yasushi Watase | 1993-05-11 |
| 4950951 | Venetian blind type secondary electron multiplier for secondary electron multiplier tubes | Kazuyoshi Okano, Hiroyuki Kyushima | 1990-08-21 |
| 4881008 | Photomultiplier with plural photocathodes | Hiroyuki Kyushima, Takahito Kato | 1989-11-14 |
| 4825066 | Photomultiplier with secondary electron shielding means | Masuo Ito | 1989-04-25 |