Inventor · disambiguated record
Yasuhiko Nakagawa
Also filed as: NAKAGAWA YASUHIKO
42 granted patents·847 citations·filing 1974–2018
98Inventor score
Top patents by PatentIndex Score
42 records- 0194US6300415B1Propylene composition, process for preparing the same, polypropylene composition, and molded articlesCHISSO CORP·Filed 1996·Granted Oct 9, 2001·136 cites·30 claims
- 0294US4502454AIgnition system for an internal combustion engineNISSAN MOTOR·Filed 1982·Granted Mar 5, 1985·53 cites·25 claims
- 0394US4246874AInternal combustion engine with dual induction system and with fuel injection system to discharge fuel into primary induction systemNISSAN MOTOR·Filed 1978·Granted Jan 27, 1981·43 cites·7 claims
- 0488US4340024AInternal combustion engineNISSAN MOTOR·Filed 1979·Granted Jul 20, 1982·36 cites·11 claims
- 0587US6437048B1Molded resin articlesCHISSO CORP·Filed 1996·Granted Aug 20, 2002·62 cites·43 claims
- 0684US4480620AFuel supply system of internal combustion engineNISSAN MOTOR·Filed 1982·Granted Nov 6, 1984·33 cites·7 claims
- 0784US4398526APlasma ignition system for internal combustion engineNISSAN MOTOR·Filed 1981·Granted Aug 16, 1983·46 cites·14 claims
- 0882US4270500AInternal combustion engine with dual induction systemNISSAN MOTOR·Filed 1978·Granted Jun 2, 1981·28 cites·12 claims
- 0978US4601957AMethod for producing a thin tin and nickel plated steel sheet for welded can materialTOYO KOHAN CO LTD·Filed 1985·Granted Jul 22, 1986·22 cites·16 claims
- 1078US4271795AInternal combustion engine with dual induction system and with fuel injection system to discharge fuel into secondary induction systemNISSAN MOTOR·Filed 1978·Granted Jun 9, 1981·35 cites·2 claims
- 1177US4457285ASustained arc ignition system for an internal combustion engineNISSAN MOTOR·Filed 1982·Granted Jul 3, 1984·18 cites·6 claims
- 1277US4364345ASplit type internal combustion engineNISSAN MOTOR·Filed 1980·Granted Dec 21, 1982·20 cites·3 claims
- 1371US4487188AFuel system for internal combustion engineNISSAN MOTOR·Filed 1982·Granted Dec 11, 1984·18 cites·4 claims
- 1469US5294862ALadder-type piezo-electric filterNGK SPARK PLUG CO·Filed 1992·Granted Mar 15, 1994·22 cites·10 claims
- 1565US4347825AFuel injection apparatus for an internal combustion engineNISSAN MOTOR·Filed 1980·Granted Sep 7, 1982·22 cites·10 claims
- 1663US4944256ARocker arm arrangement for internal combustion engine poppet valves and the likeNISSAN MOTOR·Filed 1989·Granted Jul 31, 1990·17 cites·10 claims
- 1762US5392012APiezoelectric filter in a casing sealed by an insulating filler and having cranked connecting legsNGK SPARK PLUG CO·Filed 1992·Granted Feb 21, 1995·18 cites·2 claims
- 1861US4442821AInternal combustion engine ignition methodNISSAN MOTOR·Filed 1981·Granted Apr 17, 1984·10 cites·8 claims
- 1960US4497306AIgnition system for an internal combustion engineNISSAN MOTOR·Filed 1982·Granted Feb 5, 1985·11 cites·8 claims
- 2060US4458651AElectronically controlled fuel injection system for an internal combustion engine of an automotive vehicleNISSAN MOTOR·Filed 1983·Granted Jul 10, 1984·13 cites·3 claims
- 2159US9860981B2Transparent conductive film and method for producing sameTANAKA TAKURO·Filed 2011·Granted Jan 2, 2018·2 cites·5 claims
- 2259US4354136AIgnition plug for internal combustion engineNISSAN MOTOR·Filed 1980·Granted Oct 12, 1982·15 cites·9 claims
- 2358US4108124AManifold systemNISSAN MOTOR·Filed 1976·Granted Aug 22, 1978·16 cites·4 claims
- 2457US5574414AHigh-frequency ladder type piezoelectric filter and piezoelectric resonator thereforNGK SPARK PLUG CO·Filed 1995·Granted Nov 12, 1996·15 cites·7 claims
- 2555US4864259ALadder-type electric filter circuit apparatusNGK SPARK PLUG CO·Filed 1988·Granted Sep 5, 1989·17 cites·7 claims
- 2654US4651046APiezoelectric scanning deviceNGK SPARK PLUG CO·Filed 1985·Granted Mar 17, 1987·14 cites·3 claims
- 2754US4114373AInternal combustion engine having siamesed exhaust ports and an aftercombustion chamberNISSAN MOTOR·Filed 1976·Granted Sep 19, 1978·11 cites·11 claims
- 2850US4064850AInternal combustion engine with main and auxiliary combustion chambersNISSAN MOTOR·Filed 1976·Granted Dec 27, 1977·11 cites·19 claims
- 2949US4419601ASpark plug for internal combustion engineNISSAN MOTOR·Filed 1980·Granted Dec 6, 1983·10 cites·4 claims
- 3049US4304207AExhaust gas recirculation system for an internal combustion engineNISSAN MOTOR·Filed 1979·Granted Dec 8, 1981·8 cites·2 claims
- 3148US5168253AHigh frequency ladder type piezo-electric filter with differently poled series and parallel resonatorsNGK SPARK PLUG CO·Filed 1991·Granted Dec 1, 1992·10 cites·6 claims
- 3245US5572173ALadder type filter with adjustable resonator positioning memberNGK SPARK PLUG CO·Filed 1995·Granted Nov 5, 1996·9 cites·5 claims
- 3343US8008838B2Lamb wave type elastic wave deviceUNIV YAMANASHI·Filed 2008·Granted Aug 30, 2011·0 cites·9 claims
- 3442US4073271ATorch ignition type internal combustion engineNISSAN MOTOR·Filed 1976·Granted Feb 14, 1978·6 cites·9 claims
- 3541US5094924APolyester resin film laminated steel sheet for drawn and ironed canMATSUI KENZO·Filed 1990·Granted Mar 10, 1992·15 cites·5 claims
- 3641US4475492ASystem for forcefully igniting sprayed fuel of a diesel engine during engine startingNISSAN MOTOR·Filed 1982·Granted Oct 9, 1984·7 cites·14 claims
- 3741US3991725AInternal combustion engine having auxiliary combustion chambersNISSAN MOTOR·Filed 1974·Granted Nov 16, 1976·6 cites·12 claims
- 3839US4009692ATorch-ignition reciprocating internal combustion engineNISSAN MOTOR·Filed 1974·Granted Mar 1, 1977·5 cites·1 claims
- 3938US3982513ACarburetor for torch ignited engineNISSAN MOTOR·Filed 1974·Granted Sep 28, 1976·5 cites·3 claims
- 4032US10540169B2Electronic device configured to update program stored therein using difference data and program updating method using difference dataCLARION CO LTD·Filed 2018·Granted Jan 21, 2020·0 cites·4 claims
- 4131US4081959AArrangement for supporting a thermal reactor to an engine properNISSAN MOTOR·Filed 1976·Granted Apr 4, 1978·1 cites·6 claims
- 4227US4079716AManifold systemNISSAN MOTOR·Filed 1975·Granted Mar 21, 1978·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →