Inventor · disambiguated record
Kei Shigahara
Also filed as: SHIGAHARA KEI
4 granted patents·1 pending application·55 citations·filing 2002–2008
77Inventor score
Top patents by PatentIndex Score
5 records- 0188US7730721B2Exhaust gas purification device of internal combustion engineMITSUBISHI MOTORS CORP·Filed 2008·Granted Jun 8, 2010·18 cites·7 claims
- 0274US6782696B2Control device and method for a diesel engine and diesel engineMITSUBISHI MOTORS CORP·Filed 2002·Granted Aug 31, 2004·23 cites·17 claims
- 0373US7971428B2Exhaust gas purification device for internal combustion engineMITSUBISHI MOTORS CORP·Filed 2008·Granted Jul 5, 2011·6 cites·4 claims
- 0462US7628010B2Exhaust purification systemMITSUBISHI MOTORS CORP·Filed 2006·Granted Dec 8, 2009·8 cites·8 claims
- 0550US2009158722A1Emission control systemKOJIMA MITSUTAKA·Filed 2008·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →