Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kojiro Ogata | Hitachi Construction Machinery Co. | 1 |
| 1 | Masataka Kawauchi | Hitachi | 1 |
| 1 | Tadatoshi Shimamura | Hitachi Construction Machinery Co. | 1 |
| 1 | Koichi Isaka | Hitachi | 1 |
| 1 | Junji Okita | Hitachi | 1 |