Inventor
YAMAMURA HIROHISA
JP20 patents
⚠️ This page may combine multiple inventors who share the name “YAMAMURA HIROHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
19 patentsUS6166937ADec 26, 2000
Inverter device with cooling arrangement therefor
HITACHI LTD265 citations99
US6414867B2Jul 2, 2002
Power inverter
HITACHI LTD169 citations97
US5481460AJan 2, 1996
Controller for electric vehicle
HITACHI LTD109 citations97
US6021040AFeb 1, 2000
Power storage device and power converter using same
HITACHI LTD55 citations96
US5345155ASep 6, 1994
Control system for electric vehicle
HITACHI LTD100 citations96
US5309073AMay 3, 1994
Electric vehicle control device
HITACHI LTD67 citations96
US4874053AOct 17, 1989
Torque detecting apparatus
HITACHI LTD118 citations96
US5793106AAug 11, 1998
Semiconductor device
HITACHI LTD86 citations94
US5304912AApr 19, 1994
Control apparatus for induction motor
HITACHI LTD50 citations92
US4865148ASep 12, 1989
Vehicle height control apparatus responsive to power steering operation
HITACHI LTD45 citations92
US4752771AJun 21, 1988
Electronic instrument panel
HITACHI LTD42 citations92
US6271601B1Aug 7, 2001
Wire bonding method and apparatus and semiconductor device
HITACHI LTD16 citations84
US4926960AMay 22, 1990
Electric power steering apparatus for vehicle
HITACHI LTD21 citations80
US5270578ADec 14, 1993
Method and system for controlling electric loads with high reliability
HITACHI LTD16 citations74
US4665497AMay 12, 1987
Electronic odometer
HITACHI LTD14 citations74
US4960178AOct 2, 1990
Motor-driven power steering apparatus
HITACHI LTD10 citations73
US4736198AApr 5, 1988
Multi-color liquid crystal display system
HITACHI LTD12 citations71
US6410978B1Jun 25, 2002
Semiconductor device
HITACHI LTD1 citations51
US4708440ANov 24, 1987
Liquid crystal display device
HITACHI LTD1 citations51