Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833364 | Electron gun for color picture tubes having uniquely formed lens apertures | Yukihiro Izumida, Shoji Shirai, Hidemasa Komoro, Akio Yamaguchi | 1989-05-23 |
| 4833365 | Electron gun structure for converging electron beams | Shoji Shirai, Hidemasa Komoro, Yoshiaki Takahashi, Masakazu Fukushima | 1989-05-23 |