Inventor
YAMASHITA RYUICHI
10 patents
⚠️ This page may combine multiple inventors who share the name “YAMASHITA RYUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA MOTOR CO LTD
8 patentsUS4192140AMar 11, 1980
Apparatus and method relating to internal combustion engines utilizing an exhaust gas reactor
YAMAHA MOTOR CO LTD31 citations92
US4117813AOct 3, 1978
Internal combustion engine and method of operating it
YAMAHA MOTOR CO LTD44 citations92
US4323045AApr 6, 1982
Flow control device for exhaust gas recycling system
YAMAHA MOTOR CO LTD40 citations91
US4214561AJul 29, 1980
Induction system for an internal combustion engine
YAMAHA MOTOR CO LTD18 citations73
US4195602AApr 1, 1980
Intake control means for internal combustion engines
YAMAHA MOTOR CO LTD7 citations73
US4144861AMar 20, 1979
Fuel supply for internal combustion engines
YAMAHA MOTOR CO LTD14 citations72
US4106464AAug 15, 1978
Programmed control system for a lean-burning internal combustion engine
YAMAHA MOTOR CO LTD17 citations72
US4191716AMar 4, 1980
Carburetor for internal combustion engines
YAMAHA MOTOR CO LTD5 citations62
TOSHIBA KK
2 patentsUS6504799B1Jan 7, 2003
Tracking error balance adjustment circuit and a current control circuit used for an optical disk playback apparatus, and an optical disk playback apparatus including the same
TOSHIBA KK25 citations89
US6678224B2Jan 13, 2004
Tracking error balance adjustment circuit and a current control circuit used for an optical disk playback apparatus, and an optical disk playback apparatus including the same
TOSHIBA KK7 citations70