Showing 1–9 of 9 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Manabu Edamura | Hitachi Construction Machinery Co. | 4 |
| 1 | Kouji Ishikawa | Hitachi Construction Machinery Co. | 4 |
| 3 | Naotaka Tanaka | Hitachi | 3 |
| #4 | Tadakatsu Nakajima | Hitachi | 2 |
| #4 | Kazuo Fujishima | Hitachi Construction Machinery Co. | 2 |
| #4 | Junguo Xu | Hgst Netherlands, B.V. | 2 |
| #7 | Masashi Shoji | Panasonic | 1 |
| #7 | Yoshinobu Kobayashi | Sumitomo Electric Industries | 1 |
| #7 | Daisuke Manabe | Tokyo Rope Mfg. Co. | 1 |