Showing 1–10 of 10 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Akira Shimoyama | Kokusan Denki Co. | 2 |
| 1 | Hitoharu Kimura | Hitachi | 2 |
| 3 | Norimitsu Kuwabara | Hitachi | 1 |
| 3 | Tadashi Hiyama | Hitachi Construction Machinery Co. | 1 |
| 3 | Kouichi Kaitou | Hitachi Chemical Company | 1 |
| 3 | Shinobu Higashi | Hitachi Construction Machinery Co. | 1 |
| 3 | Toshihiko Kanayama | National Institute Of Advanced Industrial Science And Technology | 1 |
| 3 | Shigekazu Kieda | Hitachi | 1 |
| 3 | Hiroo Nakamura | Hitachi | 1 |
| 3 | Tsuyoshi Sakyou | Hitachi Construction Machinery Co. | 1 |