Inventor · disambiguated record
Yukihiro Sonoda
Also filed as: SONODA YUKIHIRO
17 granted patents·387 citations·filing 1988–2010
94Inventor score
Top patents by PatentIndex Score
17 records- 0196US5088281AMethod and apparatus for determining deterioration of three-way catalysts in double air-fuel ratio sensor systemTOYOTA MOTOR CO LTD·Filed 1989·Granted Feb 18, 1992·111 cites·54 claims
- 0293US7174883B2Intake-negative-pressure-increasing apparatus for engineTOYOTA MOTOR CO LTD·Filed 2005·Granted Feb 13, 2007·34 cites·8 claims
- 0393US6837040B2In-cylinder injection type spark-ignition internal combustion engine and control method thereofTOYOTA MOTOR CO LTD·Filed 2003·Granted Jan 4, 2005·74 cites·11 claims
- 0492US7150266B2Method of controlling air fuel ratio learning for dual injection internal combustion engine in hybrid vehicleTOYOTA MOTOR CO LTD·Filed 2005·Granted Dec 19, 2006·20 cites·2 claims
- 0590US5027784APCV system with a check valve deviceTOYOTA MOTOR CO LTD·Filed 1990·Granted Jul 2, 1991·71 cites·9 claims
- 0679US7234447B2Control device of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2005·Granted Jun 26, 2007·9 cites·29 claims
- 0772US7273043B2Control device of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2007·Granted Sep 25, 2007·6 cites·4 claims
- 0864US8640681B2Control apparatus for internal combustion engineKAWAI TAKASHI·Filed 2007·Granted Feb 4, 2014·6 cites·6 claims
- 0963US4949693AFuel injection control device of an engineTOYOTA MOTOR CO LTD·Filed 1988·Granted Aug 21, 1990·14 cites·15 claims
- 1060US7814743B2Control apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2006·Granted Oct 19, 2010·4 cites·12 claims
- 1159US9027325B2Exhaust purification device of internal combustion engineNAKAYAMA YUSUKE·Filed 2010·Granted May 12, 2015·1 cites·10 claims
- 1253US4915078AFuel injection control device of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1988·Granted Apr 10, 1990·10 cites·10 claims
- 1349USRE42631EMethod of controlling air fuel ratio learning for dual injection internal combustion engine in hybrid vehicleTOYOTA MOTOR CO LTD·Filed 2008·Granted Aug 23, 2011·1 cites·6 claims
- 1439US4991559AFuel injection control device of an engineTOYOTA MOTOR CO LTD·Filed 1990·Granted Feb 12, 1991·8 cites·37 claims
- 1539US4981122AFuel injection control device of an engineTOYOTA MOTOR CO LTD·Filed 1990·Granted Jan 1, 1991·7 cites·25 claims
- 1639US4976242AFuel injection control device of an engineTOYOTA MOTOR CO LTD·Filed 1990·Granted Dec 11, 1990·7 cites·29 claims
- 1733US5018494AIdling speed control device of an engineTOYOTA MOTOR CO LTD·Filed 1990·Granted May 28, 1991·4 cites·30 claims
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