Inventor
KARAKAMA TADAO
JP23 patents
Patents
23 patentsUS6026730AFeb 22, 2000
Flow control apparatus in a hydraulic circuit
KOMATSU MFG CO LTD41 citations92
US5481872AJan 9, 1996
Hydraulic circuit for operating plural actuators and its pressure compensating valve and maximum load pressure detector
KOMATSU MFG CO LTD50 citations92
US5259192ANov 9, 1993
Hydraulic circuit system
KOMATSU MFG CO LTD22 citations92
US4517800AMay 21, 1985
Hydraulic control system for off-highway self-propelled work machines
KOMATSU MFG CO LTD27 citations92
US5558127ASep 24, 1996
Hydraulic pilot valve
KOMATSU MFG CO LTD21 citations89
US5622206AApr 22, 1997
Multiple valve unit for pressurized fluid supply system
KOMATSU MFG CO LTD17 citations81
US5533334AJul 9, 1996
Pressurized fluid supply system
KOMATSU MFG CO LTD16 citations81
US5409038AApr 25, 1995
Hydraulic circuit including pressure compensating valve
KOMATSU MFG CO LTD7 citations74
US4633666AJan 6, 1987
Integrated hydraulic system
KOMATSU MFG CO LTD13 citations74
US5813310ASep 29, 1998
Working machine fall preventive valve apparatus
KOMATSU MFG CO LTD9 citations73
US5692427ADec 2, 1997
Flow reinforcement directional control valve for a hydraulic circuit
KOMATSU MFG CO LTD10 citations73
US5673557AOct 7, 1997
Displacement control system for variable displacement type hydraulic pump
KOMATSU MFG CO LTD15 citations73
US5224589AJul 6, 1993
Operating lever device
KOMATSU MFG CO LTD15 citations73
US5184646AFeb 9, 1993
Pilot valve
KOMATSU MFG CO LTD18 citations73
US5136930AAug 11, 1992
Apparatus for supplying pressure oil to hydraulic cylinders employed in working machines
KOMATSU MFG CO LTD11 citations73
US5253672AOct 19, 1993
Hydraulic pressure control system
KOMATSU MFG CO LTD13 citations72
US5291821AMar 8, 1994
Hydraulic circuit for swivel working machine
KOMATSU MFG CO LTD8 citations66
US5076144ADec 31, 1991
Poppet valve device
KOMATSU MFG CO LTD4 citations62
US5046400ASep 10, 1991
Control valve system
KOMATSU MFG CO LTD6 citations62
US5040565AAug 20, 1991
Pilot operated control valve system
KOMATSU MFG CO LTD5 citations62
US4984603AJan 15, 1991
Flow control valve assembly
KOMATSU MFG CO LTD3 citations62
US5255705AOct 26, 1993
Hydraulic pressure control system
KOMATSU MFG CO LTD4 citations61
US5056415AOct 15, 1991
Pilot operated control valve system performing a support function
KOMATSU MFG CO LTD2 citations51