Inventor · disambiguated record
Masahisa Yamakawa
Also filed as: YAMAKAWA MASAHISA
41 granted patents·7 pending applications·322 citations·filing 2004–2023
97Inventor score
Top patents by PatentIndex Score
48 records- 0195US6968825B2Control device for spark-ignition engineMAZDA MOTOR·Filed 2004·Granted Nov 29, 2005·70 cites·31 claims
- 0294US9932883B2Spark-ignition direct-injection engineMAZDA MOTOR·Filed 2013·Granted Apr 3, 2018·21 cites·16 claims
- 0394US8838364B2Control device of spark-ignition gasoline engineNAGATSU KAZUHIRO·Filed 2012·Granted Sep 16, 2014·20 cites·16 claims
- 0494US8544444B2Control of direct fuel injection engineHITOMI MITSUO·Filed 2010·Granted Oct 1, 2013·16 cites·20 claims
- 0592US11008969B2Compression ignition gasoline engineMAZDA MOTOR·Filed 2016·Granted May 18, 2021·6 cites·11 claims
- 0691US8783227B2Engine control method and apparatusYAMAKAWA MASAHISA·Filed 2011·Granted Jul 22, 2014·12 cites·14 claims
- 0789US10837380B2Compression ignition gasoline engineMAZDA MOTOR·Filed 2016·Granted Nov 17, 2020·6 cites·3 claims
- 0888US8930118B2Engine control systemNAGATSU KAZUHIRO·Filed 2011·Granted Jan 6, 2015·10 cites·5 claims
- 0988US8655572B2Control device of spark-ignition gasoline engineIWAI KOUHEI·Filed 2012·Granted Feb 18, 2014·14 cites·16 claims
- 1088US8468823B2Supercharged direct-injection engineHITOMI MITSUO·Filed 2010·Granted Jun 25, 2013·12 cites·3 claims
- 1187US9702316B2Spark-ignition direct injection engineMAZDA MOTOR·Filed 2013·Granted Jul 11, 2017·8 cites·14 claims
- 1286US7360531B2Combustion chamber structure for spark-ignition engineMAZDA MOTOR·Filed 2006·Granted Apr 22, 2008·18 cites·14 claims
- 1385US9328688B2Supercharged direct fuel injection engineHITOMI MITSUO·Filed 2010·Granted May 3, 2016·10 cites·13 claims
- 1484US7784443B2Spark-ignition gasoline engineMAZDA MOTOR·Filed 2009·Granted Aug 31, 2010·12 cites·21 claims
- 1583US9512814B2Control method of spark ignition engine and spark ignition engineYAMAKAWA MASAHISA·Filed 2011·Granted Dec 6, 2016·6 cites·15 claims
- 1683US8459021B2Method and apparatus for controlling supercharged engineYAMAKAWA MASAHISA·Filed 2011·Granted Jun 11, 2013·6 cites·8 claims
- 1783US7484498B2Spark-ignition gasoline engineMAZDA MOTOR·Filed 2007·Granted Feb 3, 2009·15 cites·32 claims
- 1874US9650984B2Control system for gasoline engineNAGATSU KAZUHIRO·Filed 2011·Granted May 16, 2017·4 cites·7 claims
- 1974US8706382B2Control device of spark-ignition gasoline engineOBA SHUJI·Filed 2012·Granted Apr 22, 2014·5 cites·13 claims
- 2074US8150597B2Method and system for controlling an internal combustion engineYAMAKAWA MASAHISA·Filed 2009·Granted Apr 3, 2012·8 cites·21 claims
- 2172US8151762B2Direct-injection spark-ignition engineNISHIMOTO TOSHIAKI·Filed 2009·Granted Apr 10, 2012·11 cites·12 claims
- 2272US7650872B2Internal combustion engineMAZDA MOTOR·Filed 2008·Granted Jan 26, 2010·9 cites·17 claims
- 2368US10309294B2EngineMAZDA MOTOR·Filed 2016·Granted Jun 4, 2019·1 cites·2 claims
- 2463US9777694B2Control device of engineMAZDA MOTOR·Filed 2015·Granted Oct 3, 2017·1 cites·6 claims
- 2563US9255539B2Spark-ignition direct injection engineMAZDA MOTOR·Filed 2013·Granted Feb 9, 2016·1 cites·7 claims
- 2661US8316819B2Control of spark ignited internal combustion engineYAMAKAWA MASAHISA·Filed 2009·Granted Nov 27, 2012·4 cites·20 claims
- 2760US9470174B2Control system and control method of spark ignition gasoline engineMAZDA MOTOR·Filed 2012·Granted Oct 18, 2016·1 cites·9 claims
- 2859US8196560B2Internal combustion engine of spark-ignition direct-injection type and fuel injecting method thereofFUJIKAWA TATSUYA·Filed 2009·Granted Jun 12, 2012·6 cites·9 claims
- 2959US8155862B2Internal combustion engine control method and internal combustion engine systemNISHIMOTO TOSHIAKI·Filed 2009·Granted Apr 10, 2012·4 cites·20 claims
- 3058US8402749B2Control method of spark-ignition engine and spark-ignition engine systemYAMAKAWA MASAHISA·Filed 2010·Granted Mar 26, 2013·1 cites·17 claims
- 3151US10041464B2Controller of laser ignition engineMAZDA MOTOR·Filed 2015·Granted Aug 7, 2018·0 cites·1 claims
- 3250US11591983B2Engine systemMAZDA MOTOR·Filed 2021·Granted Feb 28, 2023·0 cites·14 claims
- 3347US11391235B2Engine systemMAZDA MOTOR·Filed 2021·Granted Jul 19, 2022·0 cites·20 claims
- 3446US8191528B2Internal combustion engineYOUSO TAKASHI·Filed 2008·Granted Jun 5, 2012·2 cites·20 claims
- 3545US2009319156A1Internal combustion engineMAZDA MOTOR·Filed 2009·Application pending·0 cites
- 3644US9261041B2Spark-ignition direct injection engineMAZDA MOTOR·Filed 2013·Granted Feb 16, 2016·0 cites·8 claims
- 3744US9145843B2Spark-ignition direct injection engineMAZDA MOTOR·Filed 2013·Granted Sep 29, 2015·0 cites·7 claims
- 3842US11835001B1Engine control systemMAZDA MOTOR·Filed 2023·Granted Dec 5, 2023·0 cites·6 claims
- 3941US11092108B2Control device for compression self-ignition engineMAZDA MOTOR·Filed 2020·Granted Aug 17, 2021·0 cites·10 claims
- 4041US2016201551A1Combustion chamber structure for engineMAZDA MOTOR·Filed 2015·Application pending·0 cites
- 4139US11542886B2Engine systemMAZDA MOTOR·Filed 2021·Granted Jan 3, 2023·0 cites·8 claims
- 4239US10280831B2EngineMAZDA MOTOR·Filed 2016·Granted May 7, 2019·0 cites·2 claims
- 4339US2011079194A1Combustion timing prediction method for compression self-ignition internal combustion engine, control method for compression self-ignition internal combustion engine, and compression self-ignition internal combustion engine systemCOSMO OIL CO LTD·Filed 2010·Application pending·0 cites
- 4438US6928980B2Control device for spark-ignition engineMAZDA MOTOR·Filed 2004·Granted Aug 16, 2005·2 cites·12 claims
- 4538US2016201631A1Combustion chamber structure for engineMAZDA MOTOR·Filed 2015·Application pending·0 cites
- 4638US2010077990A1Control of spark ignited internal combustion engineMAZDA MOTOR·Filed 2009·Application pending·0 cites
- 4737US2016215707A1Control device for compression-ignition type enginesMAZDA MOTOR·Filed 2016·Application pending·0 cites
- 4833US2016201596A1Combustion chamber structure for engineMAZDA MOTOR·Filed 2015·Application pending·0 cites
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