Inventor · disambiguated record
Toyohei Nakajima
Also filed as: NAKAJIMA TOYOHEI
41 granted patents·692 citations·filing 1982–2023
98Inventor score
Top patents by PatentIndex Score
41 records- 0183US4777922AMethod of abnormality detection of oxygen concentration sensorHONDA MOTOR CO LTD·Filed 1987·Granted Oct 18, 1988·27 cites·15 claims
- 0282US4796587AAir/fuel ratio control system for internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Jan 10, 1989·25 cites·5 claims
- 0380US4722779AAir/fuel ratio sensorNGK SPARK PLUG CO·Filed 1987·Granted Feb 2, 1988·44 cites·3 claims
- 0479US4721088AMethod for controlling an oxygen concentration detection apparatus with a heater elementHONDA MOTOR CO LTD·Filed 1986·Granted Jan 26, 1988·23 cites·2 claims
- 0576US5188085ADevice for measuring concentration/flow rate of a mixture drawn into an internal combustion engine and air-fuel ratio control system of the engine incorporating the deviceHONDA MOTOR CO LTD·Filed 1992·Granted Feb 23, 1993·34 cites·10 claims
- 0675US4513713AMethod of controlling operating amounts of operation control means for an internal combustion engineHONDA MOTOR CO LTD·Filed 1984·Granted Apr 30, 1985·19 cites·11 claims
- 0774US4841935AVariable air induction control system for internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Jun 27, 1989·17 cites·22 claims
- 0873US4905652ADevice for measuring a component of a gaseous mixtureHONDA MOTOR CO LTD·Filed 1989·Granted Mar 6, 1990·33 cites·48 claims
- 0973US4882695AControl system for ignition timing and boost pressure in internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Nov 21, 1989·15 cites·2 claims
- 1073US4505246AMethod for operating a closed loop air/fuel ratio control system of an internal combustion engineHONDA MOTOR CO LTD·Filed 1983·Granted Mar 19, 1985·18 cites·6 claims
- 1170US12453618B2Abnormality determination device and abnormality determination method for dental handpieceNAKANISHI INC·Filed 2023·Granted Oct 28, 2025·0 cites·8 claims
- 1270US4539967ADuty ratio control method for solenoid control valve meansHONDA MOTOR CO LTD·Filed 1984·Granted Sep 10, 1985·28 cites·16 claims
- 1368US4963246AOxygen concentration-sensing deviceHONDA MOTOR CO LTD·Filed 1988·Granted Oct 16, 1990·27 cites·17 claims
- 1468US4873642AMethod for controlling an oxygen concentration sensor for use in an air/fuel ratio control system of an internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Oct 10, 1989·16 cites·4 claims
- 1568US4766870AMethod of air/fuel ratio control for internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Aug 30, 1988·16 cites·6 claims
- 1668US4724814ASystem of abnormality detection for oxygen concentration sensorHONDA MOTOR CO LTD·Filed 1987·Granted Feb 16, 1988·27 cites·8 claims
- 1767US4860712AMethod of controlling an oxygen concentration sensorHONDA MOTOR CO LTD·Filed 1988·Granted Aug 29, 1989·25 cites·3 claims
- 1866US4915813AOxygen concentration detecting deviceHONDA MOTOR CO LTD·Filed 1988·Granted Apr 10, 1990·25 cites·12 claims
- 1965US4819602ASystem of abnormality detection for oxygen concentration sensorMIENO TOSHIYUKI·Filed 1987·Granted Apr 11, 1989·27 cites·3 claims
- 2065US4769124AOxygen concentration detection device having a pair of oxygen pump units with a simplified constructionHONDA MOTOR CO LTD·Filed 1986·Granted Sep 6, 1988·23 cites·5 claims
- 2165US4683049AOxygen sensor assemblyHONDA MOTOR CO LTD·Filed 1985·Granted Jul 28, 1987·24 cites·2 claims
- 2263US4723521AAir/fuel ratio control system for an internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Feb 9, 1988·14 cites·5 claims
- 2363US4466411AAir/fuel ratio feedback control method for internal combustion enginesHONDA MOTOR CO LTD·Filed 1983·Granted Aug 21, 1984·13 cites·10 claims
- 2462US4448177AExhaust gas recirculation control system having variable valve lift correcting speed for exhaust gas recirculation valveHONDA MOTOR CO LTD·Filed 1982·Granted May 15, 1984·17 cites·11 claims
- 2561US4922429AMethod for controlling an air/fuel ratio of an internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted May 1, 1990·13 cites·10 claims
- 2655US4787966AOxygen concentration sensor for an internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Nov 29, 1988·16 cites·3 claims
- 2755US4724815ASystem of abnormality detection for oxygen concentration sensorHONDA MOTOR CO LTD·Filed 1987·Granted Feb 16, 1988·17 cites·3 claims
- 2853US4788958AMethod of air/fuel ratio control for internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Dec 6, 1988·10 cites·8 claims
- 2949US4763628AMethod of compensating output from oxygen concentration sensor of internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Aug 16, 1988·8 cites·2 claims
- 3048US4719895AMethod for controlling an oxygen concentration sensorHONDA MOTOR CO LTD·Filed 1986·Granted Jan 19, 1988·12 cites·1 claims
- 3147US4790281AMethod of and apparatus for controlling ignition timing in internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Dec 13, 1988·11 cites·4 claims
- 3246US4760822AMethod for controlling the air/fuel ratio of an internal combustion engine with a fuel cut operationHONDA MOTOR CO LTD·Filed 1986·Granted Aug 2, 1988·7 cites·10 claims
- 3345US5011590ATemperature control device for oxygen concentration sensorHONDA MOTOR CO LTD·Filed 1988·Granted Apr 30, 1991·10 cites·2 claims
- 3445US4856480AApparatus for controlling ignition timing in internal combustionHONDA MOTOR CO LTD·Filed 1988·Granted Aug 15, 1989·10 cites·8 claims
- 3544US4759827AOxygen concentration detection apparatus with an adjusting device and its adjusting methodHONDA MOTOR CO LTD·Filed 1986·Granted Jul 26, 1988·10 cites·2 claims
- 3642US4741311AMethod of air/fuel ratio control for internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted May 3, 1988·6 cites·8 claims
- 3739US4689136AOxygen sensor assemblyHONDA MOTOR CO LTD·Filed 1985·Granted Aug 25, 1987·7 cites·4 claims
- 3838US4788822AApparatus for controlling boost pressure in turbocharged internal combustion enginesHONDA MOTOR CO LTD·Filed 1987·Granted Dec 6, 1988·6 cites·2 claims
- 3935US4796586AMethod of and apparatus for controlling ignition timing in internal combustion engineHONDA MOTOR CO LTD·Filed 1987·Granted Jan 10, 1989·3 cites·3 claims
- 4034US4877511AOxygen concentration-sensing deviceHONDA MOTOR CO LTD·Filed 1988·Granted Oct 31, 1989·4 cites·4 claims
- 4132US4961690AVariable displacement type compressorHONDA MOTOR CO LTD·Filed 1989·Granted Oct 9, 1990·5 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →