Inventor
NAKAGAWA YASUHIKO
42 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAWA YASUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NISSAN MOTOR
28 patentsUS4271795AJun 9, 1981
Internal combustion engine with dual induction system and with fuel injection system to discharge fuel into secondary induction system
NISSAN MOTOR35 citations92
US4246874AJan 27, 1981
Internal combustion engine with dual induction system and with fuel injection system to discharge fuel into primary induction system
NISSAN MOTOR43 citations92
US4398526AAug 16, 1983
Plasma ignition system for internal combustion engine
NISSAN MOTOR46 citations91
US4340024AJul 20, 1982
Internal combustion engine
NISSAN MOTOR36 citations91
US4502454AMar 5, 1985
Ignition system for an internal combustion engine
NISSAN MOTOR53 citations90
US4480620ANov 6, 1984
Fuel supply system of internal combustion engine
NISSAN MOTOR33 citations88
US4364345ADec 21, 1982
Split type internal combustion engine
NISSAN MOTOR20 citations81
US4347825ASep 7, 1982
Fuel injection apparatus for an internal combustion engine
NISSAN MOTOR22 citations81
US4270500AJun 2, 1981
Internal combustion engine with dual induction system
NISSAN MOTOR28 citations81
US4944256AJul 31, 1990
Rocker arm arrangement for internal combustion engine poppet valves and the like
NISSAN MOTOR17 citations74
US4457285AJul 3, 1984
Sustained arc ignition system for an internal combustion engine
NISSAN MOTOR18 citations74
US4114373ASep 19, 1978
Internal combustion engine having siamesed exhaust ports and an aftercombustion chamber
NISSAN MOTOR11 citations74
US4475492AOct 9, 1984
System for forcefully igniting sprayed fuel of a diesel engine during engine starting
NISSAN MOTOR7 citations73
US4442821AApr 17, 1984
Internal combustion engine ignition method
NISSAN MOTOR10 citations73
US4487188ADec 11, 1984
Fuel system for internal combustion engine
NISSAN MOTOR18 citations72
US4458651AJul 10, 1984
Electronically controlled fuel injection system for an internal combustion engine of an automotive vehicle
NISSAN MOTOR13 citations72
US4304207ADec 8, 1981
Exhaust gas recirculation system for an internal combustion engine
NISSAN MOTOR8 citations72
US4497306AFeb 5, 1985
Ignition system for an internal combustion engine
NISSAN MOTOR11 citations71
US4419601ADec 6, 1983
Spark plug for internal combustion engine
NISSAN MOTOR10 citations71
US4354136AOct 12, 1982
Ignition plug for internal combustion engine
NISSAN MOTOR15 citations71
US4064850ADec 27, 1977
Internal combustion engine with main and auxiliary combustion chambers
NISSAN MOTOR11 citations71
US4108124AAug 22, 1978
Manifold system
NISSAN MOTOR16 citations67
US4073271AFeb 14, 1978
Torch ignition type internal combustion engine
NISSAN MOTOR6 citations63
US4009692AMar 1, 1977
Torch-ignition reciprocating internal combustion engine
NISSAN MOTOR5 citations63
US3991725ANov 16, 1976
Internal combustion engine having auxiliary combustion chambers
NISSAN MOTOR6 citations62
US3982513ASep 28, 1976
Carburetor for torch ignited engine
NISSAN MOTOR5 citations62
US4081959AApr 4, 1978
Arrangement for supporting a thermal reactor to an engine proper
NISSAN MOTOR1 citations52
US4079716AMar 21, 1978
Manifold system
NISSAN MOTOR1 citations49
NGK SPARK PLUG CO
7 patentsUS5294862AMar 15, 1994
Ladder-type piezo-electric filter
NGK SPARK PLUG CO22 citations92
US5574414ANov 12, 1996
High-frequency ladder type piezoelectric filter and piezoelectric resonator therefor
NGK SPARK PLUG CO15 citations74
US5572173ANov 5, 1996
Ladder type filter with adjustable resonator positioning member
NGK SPARK PLUG CO9 citations74
US5168253ADec 1, 1992
High frequency ladder type piezo-electric filter with differently poled series and parallel resonators
NGK SPARK PLUG CO10 citations73
US4651046AMar 17, 1987
Piezoelectric scanning device
NGK SPARK PLUG CO14 citations73
US4864259ASep 5, 1989
Ladder-type electric filter circuit apparatus
NGK SPARK PLUG CO17 citations72
US5392012AFeb 21, 1995
Piezoelectric filter in a casing sealed by an insulating filler and having cranked connecting legs
NGK SPARK PLUG CO18 citations71