Inventor · disambiguated record
Masumi Kinugawa
Also filed as: FUJISAWA HIDEYA · KINUGAWA MASUMI
51 granted patents·2 pending applications·1,357 citations·filing 1974–2015
99Inventor score
Top patents by PatentIndex Score
53 records- 0198US6826903B2Exhaust gas recirculation system having coolerDENSO CORP·Filed 2003·Granted Dec 7, 2004·107 cites·16 claims
- 0297US6571765B2Control system for engineDENSO CORP·Filed 2002·Granted Jun 3, 2003·91 cites·14 claims
- 0396US6758039B2Exhaust gas cleaning system having particulate filterDENSO CORP·Filed 2003·Granted Jul 6, 2004·75 cites·6 claims
- 0496US4257377AEngine control systemNIPPON DENSO CO·Filed 1979·Granted Mar 24, 1981·61 cites·3 claims
- 0595US6854265B2Exhaust gas filter regenerating apparatus effectively burning particulate materialDENSO CORP·Filed 2003·Granted Feb 15, 2005·73 cites·19 claims
- 0695US6756904B2Device for purifying exhaust gas of enginesDENSO CORP·Filed 2002·Granted Jun 29, 2004·62 cites·11 claims
- 0795US4237838AEngine air intake control systemNIPPON DENSO CO·Filed 1979·Granted Dec 9, 1980·50 cites·14 claims
- 0894US7174706B2Exhaust emission control system for internal combustion engineDENSO CORP·Filed 2005·Granted Feb 13, 2007·23 cites·10 claims
- 0994US6969413B2Exhaust gas filtering system having particulate filter for internal combustion engineDENSO CORP·Filed 2003·Granted Nov 29, 2005·79 cites·35 claims
- 1094US4528960AFuel injection mode control for multi-cylinder internal combustion engineNIPPON DENSO CO·Filed 1983·Granted Jul 16, 1985·44 cites·4 claims
- 1192US6951100B2Exhaust gas cleaning system of internal combustion engineDENSO CORP·Filed 2003·Granted Oct 4, 2005·51 cites·18 claims
- 1291US6735941B2Exhaust gas purification system having particulate filterDENSO CORP·Filed 2003·Granted May 18, 2004·62 cites·5 claims
- 1390US4289100AApparatus for controlling rotation speed of engineNIPPON DENSO CO·Filed 1978·Granted Sep 15, 1981·36 cites·7 claims
- 1489US9062631B2Gas supply apparatus for internal combustion engineKINUGAWA MASUMI·Filed 2012·Granted Jun 23, 2015·39 cites·12 claims
- 1586US5211011AControl apparatus for rapidly warming up catalyst in internal combustion engineNIPPON DENSO CO·Filed 1992·Granted May 18, 1993·70 cites·17 claims
- 1684US7048891B2Catalyst deterioration detecting apparatusDENSO CORP·Filed 2002·Granted May 23, 2006·29 cites·9 claims
- 1784US4306527AMethod and apparatus for controlling engine rotational speedNIPPON DENSO CO·Filed 1979·Granted Dec 22, 1981·27 cites·4 claims
- 1882US7243491B2Exhaust gas purification system of internal combustion engineDENSO CORP·Filed 2004·Granted Jul 17, 2007·29 cites·23 claims
- 1979US4365601AMethod and apparatus for controlling rotation speed of engineNIPPON DENSO CO·Filed 1980·Granted Dec 28, 1982·22 cites·9 claims
- 2075US4683858AApparatus for controlling engineNIPPON DENSO CO·Filed 1986·Granted Aug 4, 1987·31 cites·8 claims
- 2171US5315823AControl apparatus for speedily warming up catalyst in internal combustion engineNIPPON DENSO CO·Filed 1992·Granted May 31, 1994·41 cites·12 claims
- 2271US4469074AElectronic control for internal combustion engineNIPPON DENSO CO·Filed 1982·Granted Sep 4, 1984·16 cites·8 claims
- 2370US7510129B2Fuel injection nozzleDENSO CORP·Filed 2005·Granted Mar 31, 2009·6 cites·9 claims
- 2469US7152392B2Exhaust gas cleaning system for internal combustion engineDENSO CORP·Filed 2003·Granted Dec 26, 2006·16 cites·16 claims
- 2567US4386591AMethod of and apparatus for controlling the air intake of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1981·Granted Jun 7, 1983·13 cites·16 claims
- 2665US7197868B2Exhaust gas purification system of internal combustion engineDENSO CORP·Filed 2004·Granted Apr 3, 2007·12 cites·11 claims
- 2765US7069907B2Compression ignition internal combustion engineDENSO CORP·Filed 2004·Granted Jul 4, 2006·10 cites·17 claims
- 2860US4736302AControl system for determining the quantity of intake air of an internal combustion engineNIPPON DENSO CO·Filed 1985·Granted Apr 5, 1988·13 cites·10 claims
- 2960US4730255AEngine control apparatusNIPPON DENSO CO·Filed 1985·Granted Mar 8, 1988·14 cites·6 claims
- 3058US5473888AAir-fuel ratio control system for internal combustion engineNIPPON DENSO CO·Filed 1994·Granted Dec 12, 1995·14 cites·8 claims
- 3158US4713765AControl system for an engine having an air intake passageNIPPON DENSO CO·Filed 1985·Granted Dec 15, 1987·12 cites·12 claims
- 3257US7832202B2Exhaust gas purification device for internal combustion engineDENSO CORP·Filed 2007·Granted Nov 16, 2010·1 cites·12 claims
- 3356US4671242AEngine control apparatusNIPPON DENSO CO·Filed 1985·Granted Jun 9, 1987·11 cites·15 claims
- 3455US4576039AAir-flow detecting apparatusNIPPON DENSO CO·Filed 1984·Granted Mar 18, 1986·11 cites·9 claims
- 3555US4572122AMethod of controlling internal combustion engineNIPPON DENSO CO·Filed 1983·Granted Feb 25, 1986·8 cites·3 claims
- 3652US7143756B2Control device and control method for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2003·Granted Dec 5, 2006·12 cites·30 claims
- 3752US4669306AHeat-wire type air flow measurement apparatusNIPPON DENKO·Filed 1985·Granted Jun 2, 1987·15 cites·16 claims
- 3852US3943891AAir-flow metering device for fuel injection system of internal combustion engineNIPPON DENSO CO·Filed 1974·Granted Mar 16, 1976·10 cites·2 claims
- 3951US4527530AMethod for correcting a controlled variable for the control of the operation of an internal combustion engine on the basis of the quantity of suction airNIPPON DENSO CO·Filed 1983·Granted Jul 9, 1985·9 cites·7 claims
- 4050US5343701AAir-fuel ratio control system for internal combustion engineNIPPON DENSO CO·Filed 1992·Granted Sep 6, 1994·10 cites·14 claims
- 4148US4945883AControl device for internal combustion engineNIPPON DENSO CO·Filed 1989·Granted Aug 7, 1990·8 cites·19 claims
- 4246US9556775B2Reducing agent supplying deviceDENSO CORP·Filed 2015·Granted Jan 31, 2017·0 cites·6 claims
- 4344US4571991AAir flow measuring apparatusNIPPON DENSO CO·Filed 1984·Granted Feb 25, 1986·8 cites·7 claims
- 4443US2004088959A1Exhaust gas cleaning system having particulate filterDENSO CORP·Filed 2003·Application pending·0 cites
- 4541US9528410B2Reducing agent supplying deviceDENSO CORP·Filed 2015·Granted Dec 27, 2016·0 cites·6 claims
- 4640US9605575B2Reducing agent supplying deviceDENSO CORP·Filed 2015·Granted Mar 28, 2017·0 cites·19 claims
- 4740US7614219B2Exhaust gas purifying apparatus for internal combustion engineDENSO CORP·Filed 2006·Granted Nov 10, 2009·0 cites·15 claims
- 4840US4680964AHeat-wire type airflow quantity measuring apparatusNIPPON DENSO CO·Filed 1986·Granted Jul 21, 1987·8 cites·17 claims
- 4939US9488082B2Reducing agent supplying deviceDENSO CORP·Filed 2015·Granted Nov 8, 2016·0 cites·5 claims
- 5037US4805578AAir-Fuel ratio control system for internal combustion engineNIPPON DENSO CO·Filed 1987·Granted Feb 21, 1989·6 cites·15 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →