Inventor · disambiguated record
Kenji Katoh
Also filed as: KATOH KENJI
50 granted patents·8 pending applications·2,711 citations·filing 1978–2020
99Inventor score
Top patents by PatentIndex Score
58 records- 0199US5201802AExhaust gas purification system for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1992·Granted Apr 13, 1993·176 cites·22 claims
- 0298US7892508B2Internal combustion engine exhaust gas purification apparatus and method for controlling sameTOYOTA MOTOR CO LTD·Filed 2008·Granted Feb 22, 2011·39 cites·11 claims
- 0398US5402641AExhaust gas purification apparatus for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1993·Granted Apr 4, 1995·188 cites·25 claims
- 0497US5577382AExhaust purification device of internal combustion engineTOYOTA MOTOR CO LTD·Filed 1995·Granted Nov 26, 1996·109 cites·16 claims
- 0597US5483795AExhaust purification device of internal combustion engineTOYOTA MOTOR CO LTD·Filed 1994·Granted Jan 16, 1996·138 cites·18 claims
- 0697US5473890AExhaust purification device of internal combustion engineTOYOTA MOTOR CO LTD·Filed 1993·Granted Dec 12, 1995·151 cites·37 claims
- 0797US5472673AExhaust gas purification device for an engineTOYOTA MOTOR CO LTD·Filed 1994·Granted Dec 5, 1995·142 cites·8 claims
- 0896US5713199ADevice for detecting deterioration of NOx absorbentTOYOTA MOTOR CO LTD·Filed 1996·Granted Feb 3, 1998·128 cites·35 claims
- 0996US4834031AVariable compression-ratio control device for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1988·Granted May 30, 1989·87 cites·10 claims
- 1095US6311480B1Emission control apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2000·Granted Nov 6, 2001·58 cites·10 claims
- 1195US5735119AExhaust purification device of an engineTOYOTA MOTOR CO LTD·Filed 1996·Granted Apr 7, 1998·109 cites·23 claims
- 1295US5732554AExhaust gas purification device for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1996·Granted Mar 31, 1998·143 cites·21 claims
- 1395US5423181AExhaust gas purification device of an engineTOYOTA MOTOR CO LTD·Filed 1993·Granted Jun 13, 1995·84 cites·10 claims
- 1494US5715679AExhaust purification device of an engineTOYOTA MOTOR CO LTD·Filed 1996·Granted Feb 10, 1998·104 cites·21 claims
- 1593US5412945AExhaust purification device of an internal combustion engineTOYOTA CENTRAL RES & DEV·Filed 1992·Granted May 9, 1995·111 cites·28 claims
- 1692US6378298B2Exhaust purifying apparatus and method for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2001·Granted Apr 30, 2002·61 cites·31 claims
- 1791US6477834B1Exhaust emission controlling apparatus of internal combustion engineTOYOTA MOTOR CO LTD·Filed 1998·Granted Nov 12, 2002·59 cites·13 claims
- 1891US5848529AApparatus and method for purifying exhaust gas in an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1997·Granted Dec 15, 1998·79 cites·2 claims
- 1991US5450722AExhaust purification device of internal combustion engineTOYOTA MOTOR CO LTD·Filed 1993·Granted Sep 19, 1995·79 cites·21 claims
- 2090US6289672B1Exhaust gas purification device for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1999·Granted Sep 18, 2001·71 cites·15 claims
- 2190US5331809AExhaust gas purification system for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1990·Granted Jul 26, 1994·125 cites·22 claims
- 2288US5974794AExhaust gas purification device for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1998·Granted Nov 2, 1999·62 cites·13 claims
- 2386US6499294B1Exhaust gas purification device for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1999·Granted Dec 31, 2002·78 cites·3 claims
- 2484US8114527B2Highly corrosion-resistant, rust-prevention coating material, highly corrosion-resistant steel, and steel structureNAGASAWA MAKOTO·Filed 2007·Granted Feb 14, 2012·9 cites·11 claims
- 2584US4528961AMethod of and system for lean-controlling air-fuel ratio in electronically controlled engineTOYOTA MOTOR CO LTD·Filed 1983·Granted Jul 16, 1985·26 cites·8 claims
- 2682US6314935B2Control system for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 2001·Granted Nov 13, 2001·22 cites·10 claims
- 2778US6269791B1Control system for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1999·Granted Aug 7, 2001·28 cites·7 claims
- 2876US8033168B2Catalyst deterioration judgment deviceTOYOTA MOTOR CO LTD·Filed 2008·Granted Oct 11, 2011·7 cites·20 claims
- 2976US5155994AExhaust gas purification system for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1992·Granted Oct 20, 1992·43 cites·15 claims
- 3074US5313792AExhaust gas purification apparatus for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1992·Granted May 24, 1994·41 cites·10 claims
- 3172US7875130B2Crude oil tank comprising a corrosion resistant steel alloyNIPPON STEEL CORP·Filed 2009·Granted Jan 25, 2011·2 cites·10 claims
- 3270US6010673AMethod for purifying exhaust gasTOYOTA MOTOR CO LTD·Filed 1996·Granted Jan 4, 2000·35 cites·9 claims
- 3366US8105699B2Zn alloy particles for high corrosion resistance rust protection paint, method of production of particles, high corrosion resistance rust protection paint containing particles, high corrosion resistance steel material coated with paint, and steel structure having steel materialKATOH KENJI·Filed 2007·Granted Jan 31, 2012·2 cites·14 claims
- 3466US6005275ASemiconductor acceleration sensor with cantileverSEIKO INSTR INC·Filed 1995·Granted Dec 21, 1999·30 cites·35 claims
- 3565US7694512B2Exhaust gas purification apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2006·Granted Apr 13, 2010·3 cites·10 claims
- 3664US4187811AExhaust gas recirculation system of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1978·Granted Feb 12, 1980·11 cites·7 claims
- 3760US8161729B2Exhaust purification system for internal combustion engine and control method of the exhaust purification systemKATOH KENJI·Filed 2007·Granted Apr 24, 2012·4 cites·6 claims
- 3855US11154809B2Packing, method for manufacturing same, and liquid film-forming structureIHI CORP·Filed 2020·Granted Oct 26, 2021·0 cites·20 claims
- 3953US5294421AMethod for catalytically purifying exhaust gasTOYOTA MOTOR CO LTD·Filed 1991·Granted Mar 15, 1994·17 cites·4 claims
- 4050US2011079001A1Exhaust purifying device of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2008·Application pending·0 cites
- 4149US11298647B2Packing and manufacturing method thereforIHI CORP·Filed 2019·Granted Apr 12, 2022·0 cites·10 claims
- 4248US4656022AProcess for producing pitch carbon fibersNIPPON OIL CO LTD·Filed 1986·Granted Apr 7, 1987·7 cites·4 claims
- 4348US2011088377A1Exhaust purification device of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2009·Application pending·0 cites
- 4448US2010112909A1Method of and apparatus for abrading outer peripheral parts of a semiconductor waferNIPPON MICRO COATING KK·Filed 2009·Application pending·0 cites
- 4547US8276367B2Exhaust gas control apparatus and method for an internal combustion engineKATOH KENJI·Filed 2007·Granted Oct 2, 2012·0 cites·17 claims
- 4647US7047726B2Method of purifying exhaust gas of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 2003·Granted May 23, 2006·5 cites·16 claims
- 4747US5648883ADisc drive having positional shift adjustmentMITSUMI ELECTRIC CO LTD·Filed 1994·Granted Jul 15, 1997·7 cites·11 claims
- 4847US2010294252A1Exhaust gas control apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2009·Application pending·0 cites
- 4946US8209105B2Internal combustion engine control apparatus and methodKATOH KENJI·Filed 2007·Granted Jun 26, 2012·1 cites·13 claims
- 5045US5085050AExhaust gas purification system for an internal combustion engine using alcohol blended gasoline for fuelTOYOTA MOTOR CO LTD·Filed 1990·Granted Feb 4, 1992·17 cites·8 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →