Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ryuichi Kaji | Hitachi | 3 |
| 2 | Tatsuo Igawa | Hitachi | 2 |
| 3 | Kohichi Saito | Hitachi | 1 |
| 3 | Igawa Tatsuo | Hitachi | 1 |
| 3 | Hashime Nagai | Hitachi | 1 |
| 3 | Hiroshi Tobita | Ikegami Tsushinki Co. | 1 |
| 3 | Katsumi Ura | Hitachi | 1 |
| 3 | Isamu Sanpei | Hitachi | 1 |