Showing 1–10 of 10 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Naotaka Tanaka | Hitachi | 3 |
| 1 | Kouji Ishikawa | Hitachi Construction Machinery Co. | 3 |
| 3 | Tadakatsu Nakajima | Hitachi | 2 |
| 3 | Yasuhiro Yoshimura | Canon | 2 |
| 3 | Shinji Nishikawa | Hitachi Construction Machinery Co. | 2 |
| 3 | Manabu Edamura | Hitachi Construction Machinery Co. | 2 |
| #7 | Yasuo Osone | Murata Manufacturing Co. | 1 |
| #7 | Takatoshi Ooki | Hitachi Construction Machinery Co. | 1 |
| #7 | Koji Hyodo | Hitachi Construction Machinery Co. | 1 |
| #7 | Takami Kusaki | Hitachi Construction Machinery Co. | 1 |