Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11331605 | Urea water tank for construction machine | Hiroyuki Azuma, Tsuyoshi Noi | 2022-05-17 |
| 10590628 | Work machine | Hiroyuki Kamata | 2020-03-17 |
| 8726664 | Engine lug-down suppressing device for hydraulic work machinery | Akihiro Narazaki | 2014-05-20 |
| 8521374 | Hydraulic work machine | Hideo Karasawa, Tsuyoshi Nakamura | 2013-08-27 |
| 8424298 | Pump torque control system for hydraulic construction machine | Kouji Ishikawa, Hideo Karasawa, Yasuo Okano, Kazunori Nakamura, Youichi Kowatari | 2013-04-23 |
| 8371117 | Torque control apparatus for construction machine three-pump system | Kazunori Nakamura, Kouji Ishikawa, Akihiro Narazaki | 2013-02-12 |
| 8266903 | Engine lag down suppressing device of construction machinery | Yoichi Kowatari, Yasushi Arai, Kouji Ishikawa, Kazunori Nakamura, Hideo Karasawa +2 more | 2012-09-18 |
| 8006491 | Pump control apparatus for construction machine | Akihiro Narazaki, Kouji Ishikawa | 2011-08-30 |
| 7584611 | Control system for hydraulic construction machine | Kazunori Nakamura, Kouji Ishikawa | 2009-09-08 |
| 7543448 | Control system for hydraulic construction machine | Kazunori Nakamura, Kouji Ishikawa, Hideo Karasawa, Yasuo Okano | 2009-06-09 |
| 7464493 | Work machine | Kouji Ishikawa, Tadatoshi Shimamura, Hidetoshi Satake | 2008-12-16 |
| 7272928 | Hydraulic circuit of construction machinery | Genroku Sugiyama, Hideaki Tanaka, Tsukasa Toyooka, Masaki Egashira, Takatoshi Ooki | 2007-09-25 |
| 7076947 | Hydraulic circuit of construction machinery | Genroku Sugiyama, Hideaki Tanaka, Tsukasa Toyooka, Masaki Egashira, Takatoshi Ooki | 2006-07-18 |