Inventor · disambiguated record
Yoshishige Oyama
Also filed as: NISHIMURA YUTAKA · OYAMA YOSHISHIGE
58 granted patents·1,761 citations·filing 1976–2002
99Inventor score
Top patents by PatentIndex Score
58 records- 0198US4627312AAutomatic transmissionHITACHI LTD·Filed 1985·Granted Dec 9, 1986·97 cites·7 claims
- 0298US4264961AAir flow rate measuring apparatusHITACHI LTD·Filed 1979·Granted Apr 28, 1981·151 cites·12 claims
- 0398US4181944AApparatus for engine controlHITACHI LTD·Filed 1978·Granted Jan 1, 1980·84 cites·14 claims
- 0497US5666916AApparatus for and method of controlling internal combustion engineHITACHI LTD·Filed 1994·Granted Sep 16, 1997·71 cites·14 claims
- 0596US4325341AFuel control device for fuel injection system for internal combustion engineHITACHI LTD·Filed 1979·Granted Apr 20, 1982·55 cites·14 claims
- 0696US4205377AControl system for internal combustion engineHITACHI LTD·Filed 1978·Granted May 27, 1980·45 cites·11 claims
- 0795US4094285AGas mixture feed system for internal combustion engineHITACHI LTD·Filed 1976·Granted Jun 13, 1978·50 cites·11 claims
- 0894US6343585B1Apparatus for and method of controlling internal combustion engineHITACHI LTD·Filed 2000·Granted Feb 5, 2002·36 cites·21 claims
- 0994US6148791AApparatus for and method of controlling internal combustion engineHITACHI LTD·Filed 1999·Granted Nov 21, 2000·50 cites·18 claims
- 1094US4887574AControl apparatus for internal combustion enginesHITACHI LTD·Filed 1988·Granted Dec 19, 1989·38 cites·13 claims
- 1194US4444169AAir-fuel ratio controlling device for internal combustion enginesHITACHI LTD·Filed 1982·Granted Apr 24, 1984·42 cites·7 claims
- 1293US4517837AAir flow rate measuring apparatusHITACHI LTD·Filed 1983·Granted May 21, 1985·42 cites·18 claims
- 1393US4424568AMethod of controlling internal combustion engineHITACHI LTD·Filed 1981·Granted Jan 3, 1984·58 cites·15 claims
- 1491US4709581AAir flow meterHITACHI LTD·Filed 1985·Granted Dec 1, 1987·63 cites·7 claims
- 1590US4590915AMulti-cylinder fuel atomizer for automobilesHITACHI LTD·Filed 1984·Granted May 27, 1986·31 cites·14 claims
- 1690US4561403AAir-fuel ratio control apparatus for internal combustion enginesHITACHI LTD·Filed 1984·Granted Dec 31, 1985·33 cites·14 claims
- 1789US4771752AControl system for internal combustion enginesHITACHI LTD·Filed 1987·Granted Sep 20, 1988·35 cites·16 claims
- 1889US4373387AAir flow meterHITACHI LTD·Filed 1980·Granted Feb 15, 1983·39 cites·13 claims
- 1988US4616621AMethod of air-fuel ratio control of internal combustion engines of automobilesHITACHI LTD·Filed 1983·Granted Oct 14, 1986·30 cites·8 claims
- 2087US5875761AApparatus for and method of controlling internal combustion engineHITACHI LTD·Filed 1997·Granted Mar 2, 1999·32 cites·85 claims
- 2186US4865006ALiquid atomizerHITACHI LTD·Filed 1988·Granted Sep 12, 1989·58 cites·10 claims
- 2286US4400974AIntake air amount detecting system for internal combustion enginesHITACHI LTD·Filed 1981·Granted Aug 30, 1983·39 cites·8 claims
- 2386US4381668AGas flow measuring apparatusHITACHI LTD·Filed 1980·Granted May 3, 1983·43 cites·13 claims
- 2486US4349877AElectronically controlled carburetorHITACHI LTD·Filed 1980·Granted Sep 14, 1982·28 cites·4 claims
- 2583US4563993AFuel feeding apparatusHITACHI LTD·Filed 1984·Granted Jan 14, 1986·23 cites·11 claims
- 2683US4552116AEngine control apparatusHITACHI LTD·Filed 1984·Granted Nov 12, 1985·26 cites·4 claims
- 2781US4562731AAir flow meterHITACHI LTD·Filed 1982·Granted Jan 7, 1986·28 cites·4 claims
- 2881US4534330AAir/fuel ratio detectorHITACHI LTD·Filed 1984·Granted Aug 13, 1985·22 cites·6 claims
- 2979US6453871B1Apparatus for and method of controlling internal combustion engineHITACHI LTD·Filed 2002·Granted Sep 24, 2002·14 cites·3 claims
- 3079US4425886AElectronic control apparatus for internal combustion engineHITACHI LTD·Filed 1980·Granted Jan 17, 1984·21 cites·19 claims
- 3177US4612895AFuel flow detector and fuel controller using fuel flow detectorHITACHI LTD·Filed 1984·Granted Sep 23, 1986·27 cites·4 claims
- 3276US4825838AAir/fuel ratio control apparatus for an internal combustion engineHITACHI LTD·Filed 1988·Granted May 2, 1989·21 cites·35 claims
- 3376US4576136AFuel dispenser for internal combustion engineHITACHI LTD·Filed 1985·Granted Mar 18, 1986·24 cites·13 claims
- 3476US4387429AFuel injection system for internal combustion engineHITACHI LTD·Filed 1980·Granted Jun 7, 1983·28 cites·25 claims
- 3575US4629535AMethod for detecting an air-fuel ratioHITACHI LTD·Filed 1985·Granted Dec 16, 1986·21 cites·6 claims
- 3674US4478075AAir flow meterHITACHI LTD·Filed 1982·Granted Oct 23, 1984·25 cites·14 claims
- 3772US4596220AElectronically-controlled system for supplying fuel into cylinderHITACHI LTD·Filed 1983·Granted Jun 24, 1986·17 cites·21 claims
- 3871US4751907AAir/fuel ratio detecting apparatus for internal combustion enginesNISSAN MOTOR·Filed 1986·Granted Jun 21, 1988·33 cites·16 claims
- 3967US4779455AAir-fuel ratio detecting sensorHITACHI LTD·Filed 1987·Granted Oct 25, 1988·17 cites·14 claims
- 4067US4420972AAir intake measuring apparatus for internal combustion engineHITACHI LTD·Filed 1982·Granted Dec 20, 1983·19 cites·8 claims
- 4165US4558678AFuel feeding apparatus for internal combustion engineHITACHI LTD·Filed 1983·Granted Dec 17, 1985·12 cites·6 claims
- 4265US4369656AAir intake measuring device for internal combustion engineHITACHI LTD·Filed 1981·Granted Jan 25, 1983·12 cites·7 claims
- 4360US4622125AOxygen concentration control systemHITACHI LTD·Filed 1984·Granted Nov 11, 1986·17 cites·12 claims
- 4457US4527423AAir flow meter for internal-combustion engineHITACHI LTD·Filed 1983·Granted Jul 9, 1985·14 cites·13 claims
- 4556US4442818AFuel injection apparatus for internal combustion enginesHITACHI LTD·Filed 1981·Granted Apr 17, 1984·9 cites·46 claims
- 4654US4882030AAir-fuel ratio detection system for engine exhaust gasHITACHI LTD·Filed 1988·Granted Nov 21, 1989·16 cites·21 claims
- 4751US4748953AAir/fuel ratio control apparatus for internal combustion enginesHITACHI LTD·Filed 1986·Granted Jun 7, 1988·9 cites·6 claims
- 4851US4417558AFuel feeding apparatus for internal combustion engineHITACHI LTD·Filed 1982·Granted Nov 29, 1983·9 cites·11 claims
- 4946US4280462AElectronically controlled carburetor for internal combustion engineHITACHI LTD·Filed 1979·Granted Jul 28, 1981·5 cites·29 claims
- 5045US6644270B2Apparatus for and method of controlling internal combustion engineHITACHI LTD·Filed 2002·Granted Nov 11, 2003·2 cites·4 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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