Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yoshinobu Kobayashi | Sumitomo Electric Industries | 2 |
| 2 | Yasuhiro Yoshimura | Canon | 1 |
| 2 | Kouji Ishikawa | Hitachi Construction Machinery Co. | 1 |
| 2 | Junichi Oizumi | Hitachi | 1 |
| 2 | Naotaka Tanaka | Hitachi | 1 |
| 2 | Tadakatsu Nakajima | Hitachi | 1 |
| 2 | Kouichi Shibata | Hitachi Construction Machinery Co. | 1 |