Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kouji Ishikawa | Hitachi Construction Machinery Co. | 5 |
| 2 | Naotaka Tanaka | Hitachi | 4 |
| 3 | Manabu Edamura | Hitachi Construction Machinery Co. | 3 |
| #4 | Junguo Xu | Hgst Netherlands, B.V. | 2 |
| #5 | Yasuhiro Yoshimura | Canon | 1 |
| #5 | Daisuke Manabe | Tokyo Rope Mfg. Co. | 1 |
| #5 | Shinji Nishikawa | Hitachi Construction Machinery Co. | 1 |
| #5 | Yasuo Osone | Murata Manufacturing Co. | 1 |