Inventor · disambiguated record
Keiso Takeda
Also filed as: TAKEDA KEISO
58 granted patents·5 pending applications·1,545 citations·filing 1977–2015
99Inventor score
Top patents by PatentIndex Score
63 records- 0199US4480616AKnock control method and apparatus for an internal-combustion engineTOYOTA MOTOR CO LTD·Filed 1983·Granted Nov 6, 1984·124 cites·15 claims
- 0298US5551231AEngine exhaust gas purification deviceTOYOTA MOTOR CO LTD·Filed 1994·Granted Sep 3, 1996·143 cites·25 claims
- 0397US4982716AFuel injection valve with an air assist adapter for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1989·Granted Jan 8, 1991·110 cites·13 claims
- 0495US6089476AFuel injection valve for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1998·Granted Jul 18, 2000·70 cites·6 claims
- 0595US4538556AAir intake device of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1984·Granted Sep 3, 1985·58 cites·7 claims
- 0691US5596957AEngineTOYOTA MOTOR CO LTD·Filed 1995·Granted Jan 28, 1997·38 cites·65 claims
- 0790US7066408B2Fuel injection valveNIPPON SOKEN·Filed 2004·Granted Jun 27, 2006·36 cites·3 claims
- 0890US6161780AFuel injection valve for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1998·Granted Dec 19, 2000·47 cites·3 claims
- 0988US6578778B2Fuel injection valveAISAN IND·Filed 2001·Granted Jun 17, 2003·31 cites·3 claims
- 1087US5542388AAir-flow control device for engineTOYOTA MOTOR CO LTD·Filed 1995·Granted Aug 6, 1996·48 cites·31 claims
- 1185US6206304B1InjectorTOYOTA MOTOR CO LTD·Filed 2000·Granted Mar 27, 2001·28 cites·20 claims
- 1285US6065436ADevice for controlling fuel injection into an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1999·Granted May 23, 2000·48 cites·10 claims
- 1385US5772124AFuel injection valveTOYOTA MOTOR CO LTD·Filed 1996·Granted Jun 30, 1998·49 cites·3 claims
- 1485US5218943AFuel injection apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 1991·Granted Jun 15, 1993·53 cites·17 claims
- 1585US5156133AFuel supply device of an engineTOYOTA MOTOR CO LTD·Filed 1992·Granted Oct 20, 1992·45 cites·11 claims
- 1684US4327675AFuel injection type internal combustion engineTOYOTA MOTOR CO LTD·Filed 1979·Granted May 4, 1982·21 cites·11 claims
- 1783US4315491AFuel injection type internal combustion engineTOYOTA MOTOR CO LTD·Filed 1979·Granted Feb 16, 1982·20 cites·17 claims
- 1882US4565166AIntake system for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1984·Granted Jan 21, 1986·30 cites·12 claims
- 1981US5461857AEngine exhaust gas purification deviceTOYOTA MOTOR CO LTD·Filed 1994·Granted Oct 31, 1995·51 cites·21 claims
- 2079US7717091B2Fuel supply systemsAISAN IND·Filed 2008·Granted May 18, 2010·9 cites·7 claims
- 2178US5934253AFuel injection apparatusTOYOTA MOTOR CO LTD·Filed 1997·Granted Aug 10, 1999·33 cites·7 claims
- 2278US5704324AEngineTOYOTA MOTOR CO LTD·Filed 1996·Granted Jan 6, 1998·20 cites·7 claims
- 2378US5492101AFuel injection control apparatus for an internal combustion engineNIPPON SOKEN·Filed 1994·Granted Feb 20, 1996·30 cites·14 claims
- 2478US4378001AFuel injection type carburetorTOYOTA MOTOR CO LTD·Filed 1980·Granted Mar 29, 1983·38 cites·1 claims
- 2575US4240390AAir-fuel ratio control system in internal combustion engineTOYOTA MOTOR CO LTD·Filed 1979·Granted Dec 23, 1980·19 cites·9 claims
- 2673US5156124AFuel injection structure for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1991·Granted Oct 20, 1992·28 cites·17 claims
- 2772US5671708AEngineTOYOTA MOTOR CO LTD·Filed 1996·Granted Sep 30, 1997·16 cites·12 claims
- 2871USRE40199EFuel injection valve for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 2004·Granted Apr 1, 2008·11 cites·6 claims
- 2968US4925110AFuel injection valve for an internal combustion engine having a pillar opposing a fuel injection holeTOYOTA MOTOR CO LTD·Filed 1988·Granted May 15, 1990·20 cites·14 claims
- 3068US4321900AFuel injection type internal combustion engineTOYOTA MOTOR CO LTD·Filed 1979·Granted Mar 30, 1982·16 cites·17 claims
- 3167US4348997AFuel injection type carburetorTOYOTA MOTOR CO LTD·Filed 1980·Granted Sep 14, 1982·16 cites·3 claims
- 3267US4231220ASecondary air control system for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1978·Granted Nov 4, 1980·18 cites·6 claims
- 3361US6807946B2Fuel supply device for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2002·Granted Oct 26, 2004·3 cites·16 claims
- 3460US6161781AFuel injector for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1998·Granted Dec 19, 2000·18 cites·7 claims
- 3559US6705297B2Fuel pump for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 2002·Granted Mar 16, 2004·6 cites·15 claims
- 3659US6073597AFuel injection apparatusNIPPON SOKEN·Filed 1998·Granted Jun 13, 2000·20 cites·13 claims
- 3758US6213413B1Fuel injection valve and method of manufacturing the fuel injection valveTOYOTA MOTOR CO LTD·Filed 1999·Granted Apr 10, 2001·16 cites·12 claims
- 3857US5984211AFuel injection valve for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1998·Granted Nov 16, 1999·16 cites·5 claims
- 3957US5301879AFuel injection device for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1992·Granted Apr 12, 1994·25 cites·5 claims
- 4055US4574748AAir intake device of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1984·Granted Mar 11, 1986·13 cites·30 claims
- 4154US6155504AFuel injector for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1999·Granted Dec 5, 2000·14 cites·9 claims
- 4254US6105883AFuel injector for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1998·Granted Aug 22, 2000·14 cites·14 claims
- 4352US4608948AAir intake device of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1984·Granted Sep 2, 1986·12 cites·16 claims
- 4449USRE40886EFuel injection valve for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 2004·Granted Sep 1, 2009·3 cites·3 claims
- 4549US6070811AFuel injector for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1998·Granted Jun 6, 2000·18 cites·5 claims
- 4646US6142392AFuel injector for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1999·Granted Nov 7, 2000·10 cites·3 claims
- 4745US6510844B2Fuel supplying apparatus and control method thereofTOYOTA MOTOR CO LTD·Filed 2001·Granted Jan 28, 2003·3 cites·24 claims
- 4844US6606978B2Internal combustion engine fuel injection apparatus and control method thereofTOYOTA MOTOR CO LTD·Filed 2001·Granted Aug 19, 2003·2 cites·16 claims
- 4944US5676102AEngineTOYOTA MOTOR CO LTD·Filed 1996·Granted Oct 14, 1997·5 cites·4 claims
- 5043US2008092864A1Blowby gas passage structureAISAN IND·Filed 2007·Application pending·0 cites
Showing the top 50 of 63 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →