Showing 1–10 of 10 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yasutaka Tsuruga | Hitachi Construction Machinery Co. | 4 |
| 2 | Fumihiko Matsuda | Nippon Mektron | 2 |
| 2 | Takayuki Ban | Toyota | 2 |
| 2 | Katsuyuki Kirita | Hitachi Construction Machinery Co. | 2 |
| #5 | Kenkichi Yano | Dainippon Ink And Chemicals | 1 |
| #5 | Yasunori Miyamoto | Hitachi Construction Machinery Co. | 1 |
| #5 | Mitsuaki Yamamoto | Sekisui Medical Co. | 1 |
| #5 | Genroku Sugiyama | Hitachi Construction Machinery Co. | 1 |
| #5 | Arata Tanaka | Littelfuse, Japan G.K. | 1 |
| #5 | Takayuki Shimodaira | Hitachi Construction Machinery Co. | 1 |