Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6133683 | Color cathode ray tube having an internal voltage divider | Tetsuya Enomoto, Shoji Shirai | 2000-10-17 |
| 4833364 | Electron gun for color picture tubes having uniquely formed lens apertures | Yukihiro Izumida, Shoji Shirai, Kazuo Majima, Akio Yamaguchi | 1989-05-23 |
| 4833365 | Electron gun structure for converging electron beams | Shoji Shirai, Yoshiaki Takahashi, Masakazu Fukushima, Kazuo Majima | 1989-05-23 |
| 4622491 | Electron gun for color picture tube with electrostatic focussing lens | Yukihiro Izumida, Kazuo Majima, Masakatsu Horiuchi, Mamoru Ikeda | 1986-11-11 |
| 4498026 | Electron gun for color picture tube | Masaaki Yamauchi, Minoru Yabe, Shoji Shirai, Kenichi Matsuda | 1985-02-05 |