| Patent | Date |
|---|
Traveling hydraulic working machine
Grant 7,493,978 - Nakamura , et al. February 24, 2 | 2009-02-24 |
Construction machine management apparatus and construction machines management system
Grant 7,493,112 - Adachi , et al. February 17, 2 | 2009-02-17 |
Traveling hydraulic working machine
Grant 7,370,475 - Nakamura , et al. May 13, 2 | 2008-05-13 |
Construction machine management apparatus and construction machines management system
App 20070202861 - Adachi; Hiroyuki ; et al. | 2007-08-30 |
Construction machine management apparatus and construction machines management system
Grant 7,228,125 - Adachi , et al. June 5, 2 | 2007-06-05 |
Communication system for working machines
Grant 7,171,188 - Watanabe , et al. January 30, 2 | 2007-01-30 |
Hydraulic drive unit
Grant 7,127,888 - Kajita , et al. October 31, 2 | 2006-10-31 |
Traveling hydraulic working machine
App 20060201147 - Nakamura; Tsuyoshi ; et al. | 2006-09-14 |
Method of detection of actual operating time of machinery deployed at construction sites, data collection and management system, and base station
Grant 7,050,893 - Watanabe , et al. May 23, 2 | 2006-05-23 |
Signal processing system for construction machine
Grant 7,020,553 - Nakamura , et al. March 28, 2 | 2006-03-28 |
Construction machine management system, and construction machine
Grant 7,010,403 - Adachi , et al. March 7, 2 | 2006-03-07 |
Security system of construction machine
Grant 7,002,465 - Komatsu , et al. February 21, 2 | 2006-02-21 |
Security system of construction machinery
Grant 6,998,957 - Shibata , et al. February 14, 2 | 2006-02-14 |
Hydraulic drive unit
App 20050144938 - Kajita, Yusuke ; et al. | 2005-07-07 |
Method and system for managing construction machine, and arithmetic processing apparatus
Grant 6,907,384 - Adachi , et al. June 14, 2 | 2005-06-14 |
System for changing function of work machine and base station
Grant 6,898,502 - Watanabe , et al. May 24, 2 | 2005-05-24 |
Signal processing system for construction machine
App 20050071064 - Nakamura, Kazunori ; et al. | 2005-03-31 |
Method for managing construction machine, and arithmetic processing apparatus
Grant 6,832,175 - Adachi , et al. December 14, 2 | 2004-12-14 |
Construction machine managing method and system, and arithmetic processing device
Grant 6,810,362 - Adachi , et al. October 26, 2 | 2004-10-26 |
Construction machine management apparatus and construction machines management system
App 20040147250 - Adachi, Hiroyuki ; et al. | 2004-07-29 |
Failure measure outputting method, output system, and output device
Grant 6,728,619 - Adachi , et al. April 27, 2 | 2004-04-27 |
Security system of construction macnine
App 20040004540 - Komatsu, Hideki ; et al. | 2004-01-08 |
Work management method, management system and management apparatus suited to work sites
Grant 6,643,582 - Adachi , et al. November 4, 2 | 2003-11-04 |
Hydraulic driving device of civil engineering and construction machinery
Grant 6,619,037 - Toyooka , et al. September 16, 2 | 2003-09-16 |
Construction machine management system
App 20030154091 - Adachi, Hiroyuki ; et al. | 2003-08-14 |
System for supplying fuel to construction machine and construction machine
App 20030149491 - Adachi, Hiroyuki ; et al. | 2003-08-07 |
System for changing function of work machine and base station
App 20030144750 - Watanabe, Hiroshi ; et al. | 2003-07-31 |
Security system of construction machinery
App 20030137398 - Shibata, Koichi ; et al. | 2003-07-24 |
Method and system for managing construction machine, and arithmetic processing apparatus
App 20030115020 - Adachi, Hiroyuki ; et al. | 2003-06-19 |
System for determining rental of construction machine
App 20030110667 - Adachi, Hiroyuki ; et al. | 2003-06-19 |
Method for managing construction machine, and arithmetic processing apparatus
App 20030093204 - Adachi, Hiroyuki ; et al. | 2003-05-15 |
Construction machine management system, and construction machine
App 20030093203 - Adachi, Hiroyuki ; et al. | 2003-05-15 |
Method of detection of actual operating time of machinery deployed at construction sites, data collection and management system, and base station
App 20030054808 - Watanabe, Hiroshi ; et al. | 2003-03-20 |
Failure measure outputting method, output system, and output device
App 20030023325 - Adachi, Hiroyuki ; et al. | 2003-01-30 |
Work Management Method, Management System And Management Apparatus Suited To Work Sites
App 20020165656 - Adachi, Hiroyuki ; et al. | 2002-11-07 |
Construction machine managing method and system, and arithmetic processing device
App 20020161551 - Adachi, Hiroyuki ; et al. | 2002-10-31 |
Cab for construction machinery
Grant 6,450,284 - Sakyo , et al. September 17, 2 | 2002-09-17 |
Method and system for managing construction machine, and arithmetic processing apparatus
Grant 6,449,884 - Watanabe , et al. September 17, 2 | 2002-09-17 |
Operator's cab in construction machine
App 20010005092 - Sakyo, Tsuyoshi ; et al. | 2001-06-28 |
Hydraulic drive system for hydraulic work vehicle
Grant 6,220,028 - Ishikawa , et al. April 24, 2 | 2001-04-24 |
Operator's cab in construction machine
Grant 6,209,949 - Sakyo , et al. April 3, 2 | 2001-04-03 |
Operator's cab for construction machines
Grant 6,206,457 - Sakyo , et al. March 27, 2 | 2001-03-27 |
Hydraulic excavator
Grant D437,602 - Hiraoka , et al. February 13, 2 | 2001-02-13 |
Output correcting method in control system, control system, and hydraulic pump control system
Grant 6,101,456 - Kowatari , et al. August 8, 2 | 2000-08-08 |
Engine control system for construction machine
Grant 6,020,651 - Nakamura , et al. February 1, 2 | 2000-02-01 |
Excavation area setting system for area limiting excavation control in construction machines
Grant 5,960,378 - Watanabe , et al. September 28, 1 | 1999-09-28 |
Control system for prime mover and hydraulic pump of hydraulic construction machine
Grant 5,911,506 - Nakamura , et al. June 15, 1 | 1999-06-15 |
Hydraulic by-pass circuit for a hydraulic shovel
Grant 5,890,303 - Ishikawa , et al. April 6, 1 | 1999-04-06 |
Hydraulic drive system for construction machines
Grant 5,848,531 - Nakamura , et al. December 15, 1 | 1998-12-15 |
Region limiting excavation control system for construction machine
Grant 5,835,874 - Hirata , et al. November 10, 1 | 1998-11-10 |
Hydraulic system having tandem hydraulic function
Grant 5,829,252 - Hirata , et al. November 3, 1 | 1998-11-03 |
Hydraulic control system for hydraulic working machine
Grant 5,813,311 - Toyooka , et al. September 29, 1 | 1998-09-29 |
Region limiting excavation control system for construction machine
Grant 5,701,691 - Watanabe , et al. December 30, 1 | 1997-12-30 |
Hydraulic circuit system for hydraulic excavator
Grant 5,673,558 - Sugiyama , et al. October 7, 1 | 1997-10-07 |
Hydraulic control system for construction machines
Grant 5,479,778 - Toyooka , et al. January 2, 1 | 1996-01-02 |
Hydraulic drive system for hydraulic working machines
Grant 5,447,027 - Ishikawa , et al. September 5, 1 | 1995-09-05 |
Hydraulic recovery device
Grant 5,442,912 - Hirata , et al. August 22, 1 | 1995-08-22 |
Hydraulic control valve apparatus and hydraulic drive system
Grant 5,433,076 - Sugiyama , et al. July 18, 1 | 1995-07-18 |
Hydraulic drive system for hydraulic working machines
Grant 5,421,155 - Hirata , et al. June 6, 1 | 1995-06-06 |
Hydraulic drive system for civil-engineering and construction machine
Grant 5,285,643 - Hirata , et al. February 15, 1 | 1994-02-15 |
Hydraulic control system for construction machine
Grant 5,267,440 - Nakamura , et al. December 7, 1 | 1993-12-07 |
Valve apparatus and hydraulic drive system
Grant 5,203,678 - Sugiyama , et al. April 20, 1 | 1993-04-20 |
Hydraulic drive system for construction machines
Grant 5,186,000 - Hirata , et al. February 16, 1 | 1993-02-16 |
Hydraulic drive traveling system
Grant 5,177,964 - Tanaka , et al. January 12, 1 | 1993-01-12 |
Hydraulic drive system
Grant 5,168,705 - Hirata , et al. December 8, 1 | 1992-12-08 |
Direction selector valve having load-sensing function
Grant 5,161,575 - Morikawa , et al. November 10, 1 | 1992-11-10 |
Hydraulic drive system for construction machine
Grant 5,155,996 - Tatsumi , et al. October 20, 1 | 1992-10-20 |
Pressure compensating valve spool positioned by difference in pressure receiving areas for load and inlet pressures
Grant 5,152,140 - Hirata , et al. October 6, 1 | 1992-10-06 |
Valve apparatus and hydraulic circuit system
Grant 5,146,747 - Sugiyama , et al. September 15, 1 | 1992-09-15 |
Hydraulic drive system for construction machines
Grant 5,134,853 - Hirata , et al. August 4, 1 | 1992-08-04 |
Displacement of variable displacement pump controlled by load sensing device having two settings for low and high speed operation of an actuator
Grant 5,085,051 - Hirata February 4, 1 | 1992-02-04 |
Hydraulic driving apparatus
Grant 5,083,430 - Hirata , et al. January 28, 1 | 1992-01-28 |
Hydraulic drive system for crawler mounted vehicle
Grant 5,079,919 - Nakamura , et al. January 14, 1 | 1992-01-14 |
Hydraulic drive system for civil engineering and construction machine
Grant 5,062,350 - Tanaka , et al. November 5, 1 | 1991-11-05 |
Anti-vibration apparatus in a hydraulic system for boom cylinder of working apparatus
Grant 5,048,296 - Sunamura , et al. September 17, 1 | 1991-09-17 |
Hydraulic drive system for crawler-mounted construction vehicle
Grant 5,005,358 - Hirata , et al. April 9, 1 | 1991-04-09 |
Control system for load-sensing hydraulic drive circuit
Grant 4,967,557 - Izumi , et al. November 6, 1 | 1990-11-06 |
Flow control valves for hydraulic motor system
Grant 4,945,723 - Izumi , et al. August 7, 1 | 1990-08-07 |
Flow control system for hydraulic motors
Grant 4,938,022 - Hirata , et al. July 3, 1 | 1990-07-03 |
Construction machine dual-dump hydraulic circuit with piloted arm-boom cylinder supply priority switching valves
Grant 4,875,337 - Sugiyama , et al. October 24, 1 | 1989-10-24 |
Pilot hydraulic system for operating directional control valve
Grant 4,753,158 - Hirata , et al. June 28, 1 | 1988-06-28 |
Control system for hydraulically-operated construction machinery
Grant 4,697,418 - Okabe , et al. October 6, 1 | 1987-10-06 |
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