Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9458840 | Relief pressure control device for hydraulic work machine | Hiroyuki Azuma, Tsuyoshi Nakamura, Hidenobu Tsukada, Kensuke Sato | 2016-10-04 |
| 9341198 | Hydraulic drive device for working machine | Tsuyoshi Nakamura, Kazunori Nakamura, Kouji Ishikawa, Kensuke Sato, Hiroyuki Azuma +2 more | 2016-05-17 |
| 9181684 | Pump control unit for hydraulic system | Tsuyoshi Nakamura, Kouji Ishikawa | 2015-11-10 |
| 8919115 | Hydraulic drive device for hydraulic excavator | Naoki Hagiwara, Tsuyoshi Nakamura, Kouji Ishikawa, Kazunori Nakamura | 2014-12-30 |
| 8756916 | Hydraulic driving device for working machine | Kensuke Sato, Tsuyoshi Nakamura, Kouji Ishikawa | 2014-06-24 |
| 8726648 | Hydraulic drive device for construction machine | Kensuke Sato, Hiroyuki Azuma, Tsuyoshi Nakamura, Kouji Ishikawa, Mitsuhiko Kanehama | 2014-05-20 |
| 8650778 | Hydraulic drive device for hydraulic working machine | Tsuyoshi Nakamura, Kouji Ishikawa, Kensuke Sato, Naoki Hagiwara | 2014-02-18 |
| 8589038 | Hydraulic drive apparatus for construction equipment | Naoki Hagiwara, Tsuyoshi Nakamura, Kensuke Sato, Kouji Ishikawa, Masanori Ezawa | 2013-11-19 |
| 8583332 | Prime mover revolution speed control system for hydraulic construction machine | Mitsuhiko Kanehama, Kensuke Sato, Hiroyuki Azuma, Tsuyoshi Nakamura | 2013-11-12 |
| 8516805 | Hydraulic driving device for work machine | Naoki Hagiwara, Tsuyoshi Nakamura, Kensuke Sato, Kouji Ishikawa, Mitsuhiko Kanehama +1 more | 2013-08-27 |
| 8424298 | Pump torque control system for hydraulic construction machine | Nobuei Ariga, Kouji Ishikawa, Hideo Karasawa, Kazunori Nakamura, Youichi Kowatari | 2013-04-23 |
| 8321094 | Engine control system for construction machine | Hidetoshi Satake, Akihiro Narazaki | 2012-11-27 |
| 7543448 | Control system for hydraulic construction machine | Kazunori Nakamura, Kouji Ishikawa, Nobuei Ariga, Hideo Karasawa | 2009-06-09 |