Inventor
YOSHIDA NOBUMI
JP24 patents
Patents
24 patentsUS6460332B1Oct 8, 2002
Pressure oil energy recover/regenation apparatus
KOMATSU MFG CO LTD131 citations97
US6209322B1Apr 3, 2001
Pressurized fluid supply system
KOMATSU MFG CO LTD68 citations96
US6151894ANov 28, 2000
Apparatus for recovering pressure oil returned from actuators
KOMATSU MFG CO LTD62 citations96
US6378301B2Apr 30, 2002
Pressurized fluid recovery/reutilization system
KOMATSU MFG CO LTD83 citations94
US6170261B1Jan 9, 2001
Hydraulic fluid supply system
KOMATSU MFG CO LTD67 citations93
US7082758B2Aug 1, 2006
Hydraulic machine, system for monitoring health of hydraulic machine, and method thereof
KOMATSU MFG CO LTD49 citations92
US6311488B1Nov 6, 2001
Cooling fan drive apparatus
KOMATSU MFG CO LTD46 citations92
US6276133B1Aug 21, 2001
Pressure fluid supply and delivery apparatus
KOMATSU MFG CO LTD26 citations92
US6026730AFeb 22, 2000
Flow control apparatus in a hydraulic circuit
KOMATSU MFG CO LTD41 citations92
US6922989B2Aug 2, 2005
Plural pressure oil energies selective recovery apparatus and selective recovery method therefor
KOMATSU MFG CO LTD28 citations91
US6334308B1Jan 1, 2002
Pressure compensating valve, unloading pressure control valve and hydraulically operated device
KOMATSU MFG CO LTD22 citations88
US6186172B1Feb 13, 2001
Directional control valve apparatus
KOMATSU MFG CO LTD18 citations84
US6718763B2Apr 13, 2004
Hydraulic drive unit
KOMATSU MFG CO LTD16 citations83
US6286308B1Sep 11, 2001
Drive unit of cooling fan
KOMATSU MFG CO LTD13 citations74
US6164327ADec 26, 2000
Meter-out flow control valve
KOMATSU MFG CO LTD12 citations74
US5409038AApr 25, 1995
Hydraulic circuit including pressure compensating valve
KOMATSU MFG CO LTD7 citations74
US7218099B2May 15, 2007
Displacement sensor
KOMATSU MFG CO LTD9 citations73
US7124045B2Oct 17, 2006
Displacement amount measuring device
KOMATSU MFG CO LTD8 citations73
US5855159AJan 5, 1999
Hydraulic circuit for a boom cylinder in a hydraulic shovel
KOMATSU MFG CO LTD16 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
US7034526B2Apr 25, 2006
Magnetic field forming device and displacement sensor using same
KOMATSU MFG CO LTD6 citations62
US6305333B1Oct 23, 2001
Air blower apparatus
KOMATSU MFG CO LTD6 citations62
US7754069B2Jul 13, 2010
Filter for trapping foreign matter
KOMATSU MFG CO LTD3 citations61