Inventor · disambiguated record
Ken Hanashi
Also filed as: HANASHI KEN
26 granted patents·3 pending applications·119 citations·filing 1999–2021
94Inventor score
Top patents by PatentIndex Score
29 records- 0192US11486024B2Heat-resistant Ir alloy wireISHIFUKU METAL IND·Filed 2021·Granted Nov 1, 2022·2 cites·7 claims
- 0291US11131008B2Heat-resistant Ir alloyISHIFUKU METAL IND·Filed 2017·Granted Sep 28, 2021·4 cites·1 claims
- 0390US6337533B1Spark plug for internal combustion engine and method for manufacturing sameDENSO CORP·Filed 1999·Granted Jan 8, 2002·50 cites·13 claims
- 0487US10938186B2Spark plug electrode and spark plugDENSO CORP·Filed 2020·Granted Mar 2, 2021·2 cites·10 claims
- 0587US9929542B2Spark plug and method for manufacturing the sameDENSO CORP·Filed 2017·Granted Mar 27, 2018·4 cites·8 claims
- 0686US6552476B1Spark plug for internal combustion engine having better self-cleaning functionDENSO CORP·Filed 2000·Granted Apr 22, 2003·26 cites·3 claims
- 0782US7816846B2Spark plug with slant peripheral surfaceDENSO CORP·Filed 2007·Granted Oct 19, 2010·8 cites·4 claims
- 0878US7768184B2Spark plug with stream shaper to shape tumble vortex into desired stream in combustion chamberDENSO CORP·Filed 2007·Granted Aug 3, 2010·6 cites·8 claims
- 0972US11773473B2Heat-resistant IR alloyISHIFUKU METAL IND·Filed 2021·Granted Oct 3, 2023·0 cites·2 claims
- 1072US8884504B2Spark plug for internal combustion engines and mounting structure for the spark plugDENSO CORP·Filed 2012·Granted Nov 11, 2014·2 cites·12 claims
- 1171US11505848B2Heat-resistant Ir alloyISHIFUKU METAL IND·Filed 2021·Granted Nov 22, 2022·0 cites·1 claims
- 1271US7893604B2Spark plug with stream shaper to shape tumble vortex into desired stream in combustion chamberDENSO CORP·Filed 2007·Granted Feb 22, 2011·4 cites·14 claims
- 1362US8760045B2Spark plug for internal combustion engines and method for manufacturing the spark plugKAWASHIMA YASUSHI·Filed 2010·Granted Jun 24, 2014·2 cites·7 claims
- 1460US9482203B2Spark plug for internal combustion engines and mounting structure for the spark plugDENSO CORP·Filed 2012·Granted Nov 1, 2016·1 cites·5 claims
- 1559US7808166B2Spark plug having improved configuration of ground electrode for ensuring high ignition capabilityDENSO CORP·Filed 2007·Granted Oct 5, 2010·2 cites·7 claims
- 1657US8258686B2Spark plug for internal combustion engineKANAO KEIJI·Filed 2006·Granted Sep 4, 2012·2 cites·9 claims
- 1750US9935429B2Ignition control systemDENSO CORP·Filed 2017·Granted Apr 3, 2018·0 cites·8 claims
- 1848US8523624B2Spark plug for internal combustion engine and manufacturing method thereofKANAO KEIJI·Filed 2012·Granted Sep 3, 2013·0 cites·6 claims
- 1948US6956319B2Structure of spark plug designed to provide higher wear resistance to center electrode and production method thereofDENSO CORP·Filed 2002·Granted Oct 18, 2005·4 cites·12 claims
- 2047US10777974B2Spark plug for internal combustion engine that makes re-discharge less prone to occurDENSO CORP·Filed 2019·Granted Sep 15, 2020·0 cites·17 claims
- 2145US10050417B2Spark plug and manufacturing method thereofDENSO CORP·Filed 2017·Granted Aug 14, 2018·0 cites·7 claims
- 2245US2012267270A1Protective sleeve for spark plugIWAMI ATSUSHI·Filed 2012·Application pending·0 cites
- 2342US8398447B2Method for manufacturing spark plug for internal-combustion engineHANASHI KEN·Filed 2012·Granted Mar 19, 2013·0 cites·17 claims
- 2440US7541724B2Spark plug requiring low discharge voltage and having high self-cleaning capabilityDENSO CORP·Filed 2006·Granted Jun 2, 2009·0 cites·17 claims
- 2540US2008284304A1Spark plug for internal combustion engineNIPPON SOKEN·Filed 2008·Application pending·0 cites
- 2640US2006220511A1Spark plug having ground electrode protruding member with inner and outer edgesNIPPON SOKEN·Filed 2006·Application pending·0 cites
- 2739US9343875B2Spark plug for internal combustion engines and mounting structure for the spark plugDENSO CORP·Filed 2012·Granted May 17, 2016·0 cites·17 claims
- 2839US8339021B2Spark plug for internal-combustion engine and method for manufacturing the sameHANASHI KEN·Filed 2008·Granted Dec 25, 2012·0 cites·15 claims
- 2939US7221079B2Spark plug with a plurality of ground electrodesDENSO CORP·Filed 2005·Granted May 22, 2007·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →