Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684694 | System for controlling a hydrostatic-mechanical transmission when an oil pressure exceeds a relief pressure | Ryoichi Maruyama, Yuichi Nagahiro | 1997-11-04 |
| 5671137 | Response control system for hydrostatic-mechanical transmissions | Ryoichi Maruyama, Shingo Ota | 1997-09-23 |
| 5622050 | System for controlling a hydrostatic-mechanical transmission at the time of vehicle acceleration or deceleration | Ryoichi Maruyama, Takashi Noda | 1997-04-22 |
| 5611405 | Turning speed control system for use in a track-laying vehicle | Ryoichi Maruyama, Hideki Yamada | 1997-03-18 |