Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11105063 | Quick coupler circuit and quick coupler attachment/detachment method | Koji Sato | 2021-08-31 |
| 8725358 | Working vehicle, control device for working vehicle, and hydraulic oil amount control method for working vehicle | Satoshi Matsumoto, Yoshiaki Saito | 2014-05-13 |
| 7549522 | Control device for input clutch of work vehicle | Yoshiharu Sato, Kentarou Itoh | 2009-06-23 |
| 5477678 | Hydraulic circuit system | Kiyoshi Shirai, Terruo Akiyama, Shigeru Shinohara, Naoki Ishizaki | 1995-12-26 |
| 5279122 | Hydraulic circuit apparatus for supplying fluid under pressure into hydraulic cylinders for work implement | Kiyoshi Shirai, Teruo Akiyama, Shigeru Shinohara, Naoki Ishizaki | 1994-01-18 |
| 5218897 | Hydraulic circuit apparatus for operating work-implement actuating cylinders | Kiyoshi Shirai, Terruo Akiyama, Shigeru Shinohara, Naoki Ishizaki | 1993-06-15 |
| 5212950 | Hydraulic circuit with pilot pressure controlled bypass | Kiyoshi Shirai, Teruo Akiyama, Shigeru Shinohara, Naoki Ishizaki | 1993-05-25 |
| 5209063 | Hydraulic circuit utilizing a compensator pressure selecting value | Kiyoshi Shirai, Shigeru Shinohara, Teruo Akiyama, Naoki Ishizaki | 1993-05-11 |
| 5188147 | Pressure compensating type hydraulic valve | Kiyoshi Shirai, Kazuo Uehara, Koichi Morita, Naoki Ishizaki | 1993-02-23 |