Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7549241 | Hydraulic control device for loader | Jun Nakano, Yasunori Hatanaka | 2009-06-23 |
| 7350353 | Hydraulic circuit | — | 2008-04-01 |
| 7263924 | Hydraulic circuit and its valve gear | — | 2007-09-04 |
| 7059237 | Multiple-directional switching valve | Jun Nakano | 2006-06-13 |
| 7032378 | Flow divider system and valve device of the same | Jun Nakano | 2006-04-25 |
| 6799424 | Hydraulic circuit | Hitoshi Segawa | 2004-10-05 |
| 5243820 | Hydraulic circuit with compensator valve biased with highest pressure acting on actuators | Ken-ichi Shimoura, Hiroaki Sakai | 1993-09-14 |
| 5107753 | Automatic pressure control device for hydraulic actuator driving circuit | — | 1992-04-28 |