Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6325901 | Method of producing a cathode-ray tube and apparatus therefor | Kazumasa Hirayama, Hitoshi Takeda, Hisashi Iijima, Takeo Ito, Sakae Kimura +1 more | 2001-12-04 |
| 4950952 | Photocathode and method of manufacturing the same | — | 1990-08-21 |
| 4654649 | Display device | Takuya Kojima, Shoichi Miyashiro | 1987-03-31 |
| 4422008 | Electron tube having a photoelectric screen | Norio Harao | 1983-12-20 |
| 4331898 | Image intensifier with two-layer input window | Tatuo Shimizu, Hisao Ishiwata, Tetsu Sano | 1982-05-25 |