Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4777401 | Color picture tube having a face panel with an outer face having a hyperbolic curvature | Shigeya Ashizaki, Osamu Konosu, Osamu Adachi | 1988-10-11 |
| 4473775 | Cathode-ray tube device | Shigeya Ashizaki, Koichi Sugawara, Masao Natsuhara | 1984-09-25 |
| 4186326 | Shadow mask having vertical pitch about 8/(2n-1) times horizontal pitch | — | 1980-01-29 |