Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4726186 | Control system of hydraulic construction machinery | Akira Tatsumi, Mitsuo Kihara, Seiji Tamura | 1988-02-23 |
| 4697418 | Control system for hydraulically-operated construction machinery | Toichi Hirata, Kuniaki Yoshida, Genroku Sugiyama, Masakazu Haga, Hideaki Tanaka +1 more | 1987-10-06 |
| 4561824 | Hydraulic drive system for civil engineering and construction machinery | Fumiki Nakagiri | 1985-12-31 |
| 4528892 | Hydraulic circuit system for construction machine | Hiroshi Mizushima | 1985-07-16 |
| 4489805 | Universal lever apparatus for hydraulic construction machine | — | 1984-12-25 |