Inventor · disambiguated record
Takeshi Atago
Also filed as: ATAGO TAKESHI
76 granted patents·2 pending applications·1,734 citations·filing 1974–2002
99Inventor score
Files withHITACHI LTD78
Top patents by PatentIndex Score
78 records- 0197US4853720ACondition adaptive-type control method for internal combustion enginesHITACHI LTD·Filed 1987·Granted Aug 1, 1989·67 cites·13 claims
- 0295US5069183AMulti-cylinder engine control method and electronic control apparatus thereforHITACHI LTD·Filed 1989·Granted Dec 3, 1991·40 cites·7 claims
- 0393US4799469AApparatus and method for controlling ignition timing for internal combustion engineHITACHI LTD·Filed 1987·Granted Jan 24, 1989·36 cites·9 claims
- 0493US4517837AAir flow rate measuring apparatusHITACHI LTD·Filed 1983·Granted May 21, 1985·42 cites·18 claims
- 0592US6286478B1Control device for engine provided with electromagnetic driven intake valves and computer useable medium having computer readable program code for performing the controlHITACHI LTD·Filed 1999·Granted Sep 11, 2001·67 cites·12 claims
- 0691US4455978AEngine rotation speed control systemHITACHI LTD·Filed 1983·Granted Jun 26, 1984·30 cites·27 claims
- 0790US5857445AEngine control deviceHITACHI LTD·Filed 1996·Granted Jan 12, 1999·57 cites·6 claims
- 0890US4887216AMethod of engine control timed to engine revolutionHITACHI LTD·Filed 1987·Granted Dec 12, 1989·33 cites·20 claims
- 0989US5256959AControl system for generator mounted on vehicleHITACHI LTD·Filed 1991·Granted Oct 26, 1993·79 cites·14 claims
- 1089US4852537AIgnition timing control apparatus for internal combustion engineHITACHI LTD·Filed 1987·Granted Aug 1, 1989·29 cites·10 claims
- 1189US4625919AElectromagnetic fuel injection valveHITACHI LTD·Filed 1984·Granted Dec 2, 1986·31 cites·7 claims
- 1288US5388405ASystem for purifying exhaust gas for use in an automobileHITACHI LTD·Filed 1992·Granted Feb 14, 1995·55 cites·2 claims
- 1387US4996965AElectronic engine control method and system for internal combustion enginesHITACHI LTD·Filed 1989·Granted Mar 5, 1991·26 cites·22 claims
- 1486US5113833AMethod and controller for supplying fuel to cylinders of multicylinder internal combustion engineHITACHI LTD·Filed 1990·Granted May 19, 1992·35 cites·12 claims
- 1585US6045764AExhaust gas purifying method and catalyst used thereforHITACHI LTD·Filed 1996·Granted Apr 4, 2000·68 cites·6 claims
- 1685US5937637ASystem for purifying exhaust gas for use in an automobileHITACHI LTD·Filed 1996·Granted Aug 17, 1999·45 cites·9 claims
- 1785US5727528AControl apparatus and control method of internal combustion engineHITACHI LTD·Filed 1997·Granted Mar 17, 1998·71 cites·21 claims
- 1882US5577383AApparatus for controlling internal combustion engineHITACHI LTD·Filed 1994·Granted Nov 26, 1996·53 cites·18 claims
- 1981US4887573AIgnition timing adjusting apparatus for internal combustion engineHITACHI LTD·Filed 1988·Granted Dec 19, 1989·25 cites·4 claims
- 2080US4991102AEngine control system using learning controlHITACHI LTD·Filed 1988·Granted Feb 5, 1991·30 cites·20 claims
- 2180US4719885AElectronic control fuel injection deviceHITACHI LTD·Filed 1987·Granted Jan 19, 1988·23 cites·8 claims
- 2276US5048495AElectronic engine control method and system for internal combustion enginesHITACHI LTD·Filed 1990·Granted Sep 17, 1991·24 cites·53 claims
- 2376US4590912AAir-fuel ratio control apparatus for internal combustion enginesHITACHI LTD·Filed 1984·Granted May 27, 1986·19 cites·4 claims
- 2474US4665877AAutomobile fuel feed apparatusHITACHI LTD·Filed 1985·Granted May 19, 1987·23 cites·3 claims
- 2574US4378000AFuel supply device for internal combustion engineHITACHI LTD·Filed 1981·Granted Mar 29, 1983·18 cites·12 claims
- 2674US4364354AAir-fuel ratio controller for carburetorHITACHI LTD·Filed 1980·Granted Dec 21, 1982·19 cites·10 claims
- 2772US5964199ADirect injection system internal combustion engine controlling apparatusHITACHI LTD·Filed 1997·Granted Oct 12, 1999·54 cites·14 claims
- 2870US5964200AControl apparatus and control method for lean burn engine and engine systemHITACHI LTD·Filed 1997·Granted Oct 12, 1999·22 cites·20 claims
- 2970US5058550AMethod for determining the control values of a multicylinder internal combustion engine and apparatus thereforHITACHI LTD·Filed 1990·Granted Oct 22, 1991·37 cites·5 claims
- 3070US4972818AControl apparatus of internal combustion engineHITACHI LTD·Filed 1989·Granted Nov 27, 1990·14 cites·13 claims
- 3169US5390493AApparatus for controlling the electric heating of catalystHITACHI LTD·Filed 1993·Granted Feb 21, 1995·35 cites·20 claims
- 3267US5791139AFuel injection control method for an internal-combustion engine provided with NOx reducing catalytic converter and fuel injection controllerHITACHI LTD·Filed 1995·Granted Aug 11, 1998·24 cites·7 claims
- 3365USRE37434ECondition adaptive-type control method for internal combustion enginesHITACHI LTD·Filed 1990·Granted Nov 6, 2001·25 cites·49 claims
- 3465US5560201ASystem for purifying exhaust gas for use in an automobileHITACHI LTD·Filed 1995·Granted Oct 1, 1996·23 cites·3 claims
- 3565US4354238AMethod of controlling air-fuel ratio of internal combustion engine so as to effectively maintain the air fuel ratio at a desired air-fuel ratio of λ=1HITACHI LTD·Filed 1980·Granted Oct 12, 1982·14 cites·32 claims
- 3664US4363209AAir-fuel control method and apparatus for internal combustion engineHITACHI LTD·Filed 1980·Granted Dec 14, 1982·14 cites·8 claims
- 3763US5605132AControl method and controller for engineHITACHI LTD·Filed 1995·Granted Feb 25, 1997·22 cites·13 claims
- 3862US5447137ALean burn control method and device for internal combustion engine and fuel injection quantity control method and device including sameHITACHI LTD·Filed 1993·Granted Sep 5, 1995·18 cites·26 claims
- 3961US5904128ACylinder fuel injection engine controllerHITACHI LTD·Filed 1998·Granted May 18, 1999·20 cites·17 claims
- 4061US4593663AControl apparatus for an internal combustion engine having a carburetorHITACHI LTD·Filed 1980·Granted Jun 10, 1986·15 cites·20 claims
- 4160US6401454B2Engine control deviceHITACHI LTD·Filed 2001·Granted Jun 11, 2002·10 cites·23 claims
- 4259US6135085AControl apparatus for use in internal combustion engineHITACHI LTD·Filed 1998·Granted Oct 24, 2000·27 cites·5 claims
- 4359US6125832AEngine fuel supply apparatusHITACHI LTD·Filed 1998·Granted Oct 3, 2000·18 cites·10 claims
- 4459US4732126AFuel control system for internal combustion enginesHITACHI LTD·Filed 1987·Granted Mar 22, 1988·12 cites·1 claims
- 4558US4748951AApparatus for and method of controlling the idling of automobile engineHITACHI LTD·Filed 1987·Granted Jun 7, 1988·16 cites·4 claims
- 4657US4821698AFuel injection systemHITACHI LTD·Filed 1986·Granted Apr 18, 1989·11 cites·5 claims
- 4756US4383506AEngine rotation speed control systemHITACHI LTD·Filed 1980·Granted May 17, 1983·9 cites·9 claims
- 4855US6155227AControl apparatus for a direct injection engine and control method of the engineHITACHI LTD·Filed 1998·Granted Dec 5, 2000·16 cites·20 claims
- 4955US5226393AAltitude decision system and an engine operating parameter control system using the sameHITACHI LTD·Filed 1992·Granted Jul 13, 1993·14 cites·10 claims
- 5055US4462378AControl apparatus for an internal combustion engine having a carburetorHITACHI LTD·Filed 1983·Granted Jul 31, 1984·9 cites·4 claims
Showing the top 50 of 78 patent records by PatentIndex Score.
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