Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7272928 | Hydraulic circuit of construction machinery | Nobuei Ariga, Genroku Sugiyama, Hideaki Tanaka, Tsukasa Toyooka, Takatoshi Ooki | 2007-09-25 |
| 7076947 | Hydraulic circuit of construction machinery | Nobuei Ariga, Genroku Sugiyama, Hideaki Tanaka, Tsukasa Toyooka, Takatoshi Ooki | 2006-07-18 |
| 5265569 | Prime mover rotational speed control system | Masakazu Haga, Osamu Tomikawa, Touichi Hirata | 1993-11-30 |
| 5036817 | Engine remote control system | Osamu Tomikawa, Touichi Hirata, Akira Tatsumi, Masakazu Haga, Hiroshi Watanabe | 1991-08-06 |
| 4955344 | Apparatus for controlling rotational speed of prime mover of construction machine | Akira Tatsumi, Toichi Hirata, Osamu Tomikawa, Hiroshi Watanabe | 1990-09-11 |