Inventor
CHIKUMA ISAMU
JP26 patents
⚠️ This page may combine multiple inventors who share the name “CHIKUMA ISAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NSK LTD
13 patentsUS6711965B2Mar 30, 2004
Electric steering column apparatus
NSK LTD46 citations96
US5685390ANov 11, 1997
Electrically-operated power steering apparatus
NSK LTD46 citations92
US5445237AAug 29, 1995
Electric power steering apparatus
NSK LTD31 citations92
US5295550AMar 22, 1994
Four-wheel steering apparatus
NSK LTD24 citations92
US5732790AMar 31, 1998
Electric power steering apparatus
NSK LTD44 citations91
US5508921AApr 16, 1996
Four wheel steering apparatus
NSK LTD41 citations89
US6237954B1May 29, 2001
Apparatus for supporting a steering column
NSK LTD11 citations74
US5454438AOct 3, 1995
Electric power steering system
NSK LTD17 citations74
US5248009ASep 28, 1993
Vehicle rear wheels steering apparatus
NSK LTD12 citations74
US5236057AAug 17, 1993
Rear wheel steering apparatus for vehicle
NSK LTD7 citations74
US5482127AJan 9, 1996
Electric power steering device
NSK LTD8 citations68
US5445238AAug 29, 1995
Electric power steering apparatus
NSK LTD17 citations67
US6237955B1May 29, 2001
Shock absorbing type steering column apparatus
NSK LTD6 citations63
NIPPON SEIKO KK
6 patentsUS4834201AMay 30, 1989
Electrical power steering apparatus
NIPPON SEIKO KK25 citations92
US4730687AMar 15, 1988
Steering force control device for power steering system
NIPPON SEIKO KK26 citations92
US4724717AFeb 16, 1988
Rack shaft supporting device
NIPPON SEIKO KK51 citations92
US4874183AOct 17, 1989
Four-wheel steering apparatus of a vehicle
NIPPON SEIKO KK10 citations74
US5147009ASep 15, 1992
Steering force control apparatus of power steering system
NIPPON SEIKO KK6 citations63
US5048852ASep 17, 1991
Four-wheel steering apparatus
NIPPON SEIKO KK6 citations63
MAZDA MOTOR
6 patentsUS4621702ANov 11, 1986
Four-wheel steering apparatus of a vehicle
MAZDA MOTOR26 citations92
US4572316AFeb 25, 1986
Four-wheel steering system for vehicle
MAZDA MOTOR41 citations89
US4732231AMar 22, 1988
Vehicle four wheel steering system
MAZDA MOTOR14 citations73
US4646867AMar 3, 1987
Four-wheel steering system for vehicle
MAZDA MOTOR14 citations73
US4610328ASep 9, 1986
Four-wheel steering system for vehicle
MAZDA MOTOR11 citations73
US4982804AJan 8, 1991
Vehicle steering system
MAZDA MOTOR3 citations61