Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Katsumi Kiyooka | Komatsu Zenoah | 7 |
| 2 | Koichiro Ishibashi | Hitachi | 3 |
| 3 | Hideo Mizutani | Nikon | 2 |
| #4 | Mikiya Sekine | Mitsubishi Paper Mills Limited | 1 |
| #4 | Tatsuo Yamaguchi | Topcon | 1 |
| #4 | Kouichi Hanazawa | Sapporo Breweries Limited | 1 |
| #4 | Akio Noji | Honda Motor Co. | 1 |