Inventor · disambiguated record
Nobuaki Kayanuma
Also filed as: KAYANUMA NOBUAKI
27 granted patents·1,066 citations·filing 1976–1993
97Inventor score
Files withTOYOTA MOTOR CO LTD27
Top patents by PatentIndex Score
27 records- 0199US5056494ASystem for treating vaporized fuel in an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1990·Granted Oct 15, 1991·165 cites·9 claims
- 0297US5143035AApparatus for detecting malfunction in evaporated fuel purge systemTOYOTA MOTOR CO LTD·Filed 1991·Granted Sep 1, 1992·86 cites·8 claims
- 0397US4964272AAir-fuel ratio feedback control system including at least downstreamside air-fuel ratio sensorTOYOTA MOTOR CO LTD·Filed 1988·Granted Oct 23, 1990·71 cites·32 claims
- 0496US5088281AMethod and apparatus for determining deterioration of three-way catalysts in double air-fuel ratio sensor systemTOYOTA MOTOR CO LTD·Filed 1989·Granted Feb 18, 1992·111 cites·54 claims
- 0596US4739614ADouble air-fuel ratio sensor system in internal combustion engineTOYOTA MOTOR CO LTD·Filed 1986·Granted Apr 26, 1988·70 cites·108 claims
- 0696US4667636AFuel injection type internal combustion engineTOYOTA MOTOR CO LTD·Filed 1986·Granted May 26, 1987·59 cites·24 claims
- 0789US5245973AFailure detection device for evaporative fuel purge systemTOYOTA MOTOR CO LTD·Filed 1992·Granted Sep 21, 1993·54 cites·11 claims
- 0885US4059081AEVAP system-provided throttle valve control unitTOYOTA MOTOR CO LTD·Filed 1976·Granted Nov 22, 1977·23 cites·5 claims
- 0984US5165230AApparatus for determining deterioration of three-way catalyst of internal combustion engineTOYOTA MOTOR CO LTD·Filed 1991·Granted Nov 24, 1992·77 cites·32 claims
- 1079US4693076ADouble air-fuel ratio sensor system having improved response characteristicsTOYOTA MOTOR CO LTD·Filed 1986·Granted Sep 15, 1987·24 cites·36 claims
- 1176US5230319AApparatus for detecting malfunction in evaporated fuel purge systemTOYOTA MOTOR CO LTD·Filed 1991·Granted Jul 27, 1993·30 cites·10 claims
- 1274US4570590AInternal combustion engine with multiple intake valvesTOYOTA MOTOR CO LTD·Filed 1985·Granted Feb 18, 1986·26 cites·5 claims
- 1373US5119631AApparatus and method for detecting abnormalities in a secondary air supplierTOYOTA MOTOR CO LTD·Filed 1991·Granted Jun 9, 1992·43 cites·19 claims
- 1473US4796425ADouble air-fuel ratio sensor system carrying out learning control operationTOYOTA MOTOR CO LTD·Filed 1987·Granted Jan 10, 1989·19 cites·44 claims
- 1573US4745741ADouble air-fuel ratio sensor system having improved response characteristicsTOYOTA MOTOR CO LTD·Filed 1986·Granted May 24, 1988·19 cites·144 claims
- 1672US4809501ADouble air-fuel ratio sensor system having improved exhaust emission characteristicsTOYOTA MOTOR CO LTD·Filed 1988·Granted Mar 7, 1989·18 cites·20 claims
- 1767US5282383AMethod and apparatus for determining deterioration of three-way catalysts in double air-fuel ratio sensors systemTOYOTA MOTOR CO LTD·Filed 1992·Granted Feb 1, 1994·21 cites·33 claims
- 1866US5181499AApparatus for diagnosing abnormality in fuel injection system and fuel injection control system having the apparatusTOYOTA MOTOR CO LTD·Filed 1992·Granted Jan 26, 1993·21 cites·15 claims
- 1964US5207057AAir-fuel ratio control device for an engineTOYOTA MOTOR CO LTD·Filed 1992·Granted May 4, 1993·32 cites·20 claims
- 2061US4729219ADouble air-fuel ratio sensor system having improved response characteristicsTOYOTA MOTOR CO LTD·Filed 1986·Granted Mar 8, 1988·13 cites·38 claims
- 2160US5203870AMethod and apparatus for detecting abnormal state of evaporative emission-control systemTOYOTA MOTOR CO LTD·Filed 1991·Granted Apr 20, 1993·18 cites·24 claims
- 2256US5245865ADevice for determining misfiring cylinder of multicylinder engineTOYOTA MOTOR CO LTD·Filed 1992·Granted Sep 21, 1993·18 cites·21 claims
- 2356US5069035AMisfire detecting system in double air-fuel ratio sensor systemTOYOTA MOTOR CO LTD·Filed 1990·Granted Dec 3, 1991·15 cites·40 claims
- 2448US5313925AApparatus for detecting malfunction in fuel evaporative prurge systemTOYOTA MOTOR CO LTD·Filed 1993·Granted May 24, 1994·11 cites·5 claims
- 2548US4351296AApparatus for controlling deceleration of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1980·Granted Sep 28, 1982·6 cites·3 claims
- 2647US4703619ADouble air-fuel ratio sensor system having improved response characteristicsTOYOTA MOTOR CO LTD·Filed 1986·Granted Nov 3, 1987·8 cites·14 claims
- 2744USRE37250EApparatus for detecting malfunction in evaporated fuel purge systemTOYOTA MOTOR CO LTD·Filed 1993·Granted Jul 3, 2001·8 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →