Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7401464 | Energy regeneration system for machines | — | 2008-07-22 |
| 7269947 | Vibration control method and vibration control system for fluid pressure control circuit | — | 2007-09-18 |
| 7197871 | Power system and work machine using same | — | 2007-04-03 |
| 7162869 | Hydraulic system for a work machine | — | 2007-01-16 |
| 6945039 | Power system and work machine using same | — | 2005-09-20 |
| 6817277 | Device for controlling hydraulic pressure of construction machine | — | 2004-11-16 |
| 6694860 | Hydraulic control system with regeneration | — | 2004-02-24 |
| 6619183 | Electrohydraulic valve assembly | — | 2003-09-16 |
| 6557822 | Dynamically stable flow amplifying poppet valve | — | 2003-05-06 |
| 6502500 | Hydraulic system for a work machine | — | 2003-01-07 |
| 6051198 | Catalyst for purifying fumigation exhaust gases and a method of purifying fumigation exhaust gases | Kunio Sano, Kazuyoshi Nishikawa, Kazumi Okuhara | 2000-04-18 |
| 6009708 | Control apparatus for construction machine | Masatoshi Miki, Makoto Samejima, Tomohiro Akaki, Shigeyoshi Mitsumori | 2000-01-04 |
| 5692377 | Apparatus for controlling lifting operation | Naoyuki Moriya, Yoshinori Yamagishi, Nobuaki Matoba | 1997-12-02 |
| 5433077 | Actuator control device with meter-out valve | — | 1995-07-18 |
| 5415076 | Hydraulic system having a combined meter-out and regeneration valve assembly | John J. Krone | 1995-05-16 |
| 5174329 | Loading pressure compensation type logic valve | Yoshiyuki Shimada | 1992-12-29 |
| 5163352 | Cylinder control unit | — | 1992-11-17 |
| 5101628 | Energy regenerative circuit in a hydraulic apparatus | — | 1992-04-07 |
| 5046309 | Energy regenerative circuit in a hydraulic apparatus | — | 1991-09-10 |
| 4997159 | Logic valve | Naotaka Dohke | 1991-03-05 |
| 4938023 | Swing-frame motor flow and sensed load pressure control system for hydraulic excavator | — | 1990-07-03 |