Inventor · disambiguated record
Akihito Numata
Also filed as: NUMATA AKIHITO
16 granted patents·2 pending applications·250 citations·filing 1994–2015
93Inventor score
Top patents by PatentIndex Score
18 records- 0186US8573185B2Diagnostic device for internal-combustion engineMIURA RYUSEI·Filed 2010·Granted Nov 5, 2013·14 cites·10 claims
- 0279US5557933AMalfunction diagnosis apparatus for internal combustion engineHITACHI LTD·Filed 1994·Granted Sep 24, 1996·30 cites·23 claims
- 0376US5400592ADiagnostic apparatus for catalytic converter of an internal combustion engineHITACHI LTD·Filed 1994·Granted Mar 28, 1995·47 cites·33 claims
- 0474US5740676ADiagnostic apparatus for exhaust gas clarification apparatus for internal combustion engineHITACHI LTD·Filed 1996·Granted Apr 21, 1998·32 cites·8 claims
- 0568US6003309ADiagnostic apparatus for exhaust gas clarification apparatus for internal combustion engineHITACHI LTD·Filed 1997·Granted Dec 21, 1999·40 cites·4 claims
- 0668US5758491ADiagnosing system and method of catalytic converter for controlling exhaust gas of internal combustion engineHITACHI LTD·Filed 1996·Granted Jun 2, 1998·25 cites·39 claims
- 0764US8190351B2Diagnostic control apparatus for internal combustion enginesFUKUCHI EISAKU·Filed 2009·Granted May 29, 2012·6 cites·15 claims
- 0855US5828976ADetector device for combustion state in internal combustion engineHITACHI LTD·Filed 1996·Granted Oct 27, 1998·15 cites·22 claims
- 0954US5991685ACombustion state detection system for internal combustion engineHITACHI LTD·Filed 1998·Granted Nov 23, 1999·16 cites·8 claims
- 1051US10012160B2Control device and control method of engineHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Jul 3, 2018·0 cites·12 claims
- 1147US5951618ADetector device for combustion state in internal combustion engineHITACHI LTD·Filed 1998·Granted Sep 14, 1999·10 cites·20 claims
- 1246US9429089B2Control device of engineNAKAGAWA SHINJI·Filed 2011·Granted Aug 30, 2016·0 cites·15 claims
- 1346US5991684AApparatus and method of detecting combustion state of internal combustion engine and recording medium storing program for execution of the detecting methodHITACHI LTD·Filed 1997·Granted Nov 23, 1999·12 cites·19 claims
- 1444US10508608B2Control device for engineHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Dec 17, 2019·0 cites·5 claims
- 1538US2013275024A1Engine control deviceNAKAGAWA SHINJI·Filed 2011·Application pending·0 cites
- 1634US2011179774A1Control Diagnostic Apparatus for Internal Combustion EngineHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2011·Application pending·0 cites
- 1733US8011174B2Apparatus for diagnosing exhaust gas purifying deviceHITACHI LTD·Filed 2008·Granted Sep 6, 2011·0 cites·9 claims
- 1831US6474145B1Combustion state detection system for internal combustion engineHITACHI LTD·Filed 1998·Granted Nov 5, 2002·3 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →