Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4672261 | Electron gun for color picture tube | Shoji Shirai, Fumio Noda, Masaaki Yamauchi, Masakazu Fukushima | 1987-06-09 |
| 4599534 | Electron gun for color picture tube | Shoji Shirai, Masaaki Yamauchi, Hiroshi Takano, Masakazu Fukushima | 1986-07-08 |