Showing 1–10 of 10 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Manabu Edamura | Hitachi Construction Machinery Co. | 3 |
| 2 | Naotaka Tanaka | Hitachi | 2 |
| 2 | Tadakatsu Nakajima | Hitachi | 2 |
| 2 | Kouji Ishikawa | Hitachi Construction Machinery Co. | 2 |
| #5 | Naoki Hagiwara | Hitachi Construction Machinery Co. | 1 |
| #5 | Masashi Shoji | Panasonic | 1 |
| #5 | Yasuhiro Yoshimura | Canon | 1 |
| #5 | Shinji Nishikawa | Hitachi Construction Machinery Co. | 1 |
| #5 | Yasuo Osone | Murata Manufacturing Co. | 1 |
| #5 | Kazuo Fujishima | Hitachi Construction Machinery Co. | 1 |