Inventor
NAITO SHOTARO
JP31 patents
Patents
31 patentsUS5780980AJul 14, 1998
Electric car drive system provided with hybrid battery and control method
HITACHI LTD323 citations99
US5808448ASep 15, 1998
Method and apparatus for operating an electric vehicle having a hybrid battery
HITACHI LTD100 citations98
US5357181AOct 18, 1994
Failure detection method for electric vehicles and fail-safe control method using this method
HITACHI LTD123 citations98
US4970645ANov 13, 1990
Suspension control method and apparatus for vehicle
HITACHI LTD55 citations96
US4874053AOct 17, 1989
Torque detecting apparatus
HITACHI LTD118 citations96
US5476310ADec 19, 1995
Braking apparatus for electric vehicle
HITACHI LTD87 citations95
US5793106AAug 11, 1998
Semiconductor device
HITACHI LTD86 citations94
US5600215AFeb 4, 1997
Controller for electric vehicle
HITACHI LTD39 citations93
US6766874B2Jul 27, 2004
System for driving hybrid vehicle, method thereof and electric power supply system therefor
HITACHI LTD46 citations92
US6752226B2Jun 22, 2004
System for driving hybrid vehicle, method thereof and electric power supply system therefor
HITACHI LTD41 citations92
US6236172B1May 22, 2001
Driving system for electric vehicle
HITACHI LTD31 citations92
US5567880AOct 22, 1996
Semiconductor accelerometer
HITACHI LTD55 citations92
US5557181ASep 17, 1996
Brake control apparatus for electric motor vehicle
HITACHI LTD25 citations92
US5228341AJul 20, 1993
Capacitive acceleration detector having reduced mass portion
HITACHI LTD45 citations92
US4564905AJan 14, 1986
Trip computer for vehicles
HITACHI LTD34 citations92
US4398260AAug 9, 1983
Skid control method
HITACHI LTD32 citations92
US4745319AMay 17, 1988
Magneto D.C. motor having elastic magnet mounting retainers
HITACHI LTD41 citations91
US4500820AFeb 19, 1985
Protective control apparatus for electrical vehicle
HITACHI LTD23 citations82
US4366420ADec 28, 1982
Electromobile control device
HITACHI LTD21 citations82
US4553196ANov 12, 1985
Power source system for vehicular electronic device
HITACHI LTD24 citations81
US4124812ANov 7, 1978
Braking control apparatus for an electric motor operated vehicle
HITACHI LTD30 citations81
US5631796AMay 20, 1997
Electric vehicle control system
HITACHI LTD16 citations74
US5544523AAug 13, 1996
Physical quantity sensor arrangement
HITACHI LTD7 citations74
US4665497AMay 12, 1987
Electronic odometer
HITACHI LTD14 citations74
US4580083AApr 1, 1986
Chopper controller for a D.C. motor
HITACHI LTD11 citations74
US4222005ASep 9, 1980
Testing device for generator output voltage regulators
HITACHI LTD12 citations74
US4150324AApr 17, 1979
Speed control system of traction motor for electric vehicles
HITACHI LTD16 citations74
US4039853AAug 2, 1977
Magnetizing device for permanent magnet motor for electric vehicle
HITACHI LTD17 citations74
US4732120AMar 22, 1988
Control apparatus for internal combustion engine provided with permanent magnet type starting motor
HITACHI LTD14 citations73
US4635034AJan 6, 1987
Display apparatus for vehicle
HITACHI LTD18 citations73
US4025836AMay 24, 1977
Protective system against commutation failure in a chopper circuit
HITACHI LTD18 citations71