Inventor · disambiguated record
Masamichi Shibata
Also filed as: SHIBATA MASAMICHI
61 granted patents·2 pending applications·357 citations·filing 1981–2020
98Inventor score
Top patents by PatentIndex Score
63 records- 0192US6111345ASpark plug for apparatus for detecting ion current without generating spike-like noise on the ion currentDENSO CORP·Filed 1997·Granted Aug 29, 2000·62 cites·58 claims
- 0288US10666022B2Ignition plug and method for manufacturing ignition plugDENSO CORP·Filed 2019·Granted May 26, 2020·2 cites·11 claims
- 0388US9385510B2Spark plug for internal combustion engine and method of manufacturing spark plugDENSO CORP·Filed 2015·Granted Jul 5, 2016·3 cites·16 claims
- 0487US10938186B2Spark plug electrode and spark plugDENSO CORP·Filed 2020·Granted Mar 2, 2021·2 cites·10 claims
- 0586US7210459B2Common-rail fuel injection systemDENSO CORP·Filed 2005·Granted May 1, 2007·16 cites·11 claims
- 0683US8033273B2Plasma ignition systemDENSO CORP·Filed 2008·Granted Oct 11, 2011·11 cites·17 claims
- 0782US6720716B2Spark plug and method for manufacturing the sameDENSO CORP·Filed 2001·Granted Apr 13, 2004·23 cites·26 claims
- 0879US6318897B1Roller bearing and a method of producing the sameKOYO SEIKO CO·Filed 2000·Granted Nov 20, 2001·22 cites·3 claims
- 0977US5982080ASpark plug and its manufacturing methodDENSO CORP·Filed 1997·Granted Nov 9, 1999·29 cites·29 claims
- 1074US9127638B2Control apparatus for internal combustion engineDENSO CORP·Filed 2013·Granted Sep 8, 2015·3 cites·19 claims
- 1173US8552651B2High frequency plasma generation system and high frequency plasma ignition device using the sameSUGINO MASAYOSHI·Filed 2012·Granted Oct 8, 2013·9 cites·8 claims
- 1273US6483079B2Glow plug and method of manufacturing the same, and ion current detectorDENSO CORP·Filed 1997·Granted Nov 19, 2002·37 cites·86 claims
- 1372US4444043AKnocking detector for internal combustion engineNIPPON SOKEN·Filed 1981·Granted Apr 24, 1984·26 cites·2 claims
- 1470US9234491B2Spark plug for internal combustion engineNIPPON SOKEN·Filed 2015·Granted Jan 12, 2016·1 cites·16 claims
- 1570US9086046B2Ignition apparatus for an internal combustion engineDENSO CORP·Filed 2012·Granted Jul 21, 2015·2 cites·10 claims
- 1670US7685717B2Method for manufacturing a bearing raceway memberJTEKT CORP·Filed 2003·Granted Mar 30, 2010·11 cites·2 claims
- 1768US6694958B2Ignition device for internal combustion engineDENSO CORP·Filed 2003·Granted Feb 24, 2004·10 cites·3 claims
- 1868US4557229AIgnition apparatus for internal combustion enginesNIPPON DENSO CO·Filed 1983·Granted Dec 10, 1985·12 cites·5 claims
- 1966US7109646B2Spark plug having center electrode with columnar portion and conical portionNIPPON SOKEN·Filed 2003·Granted Sep 19, 2006·10 cites·9 claims
- 2060US9702332B2Ignition deviceDENSO CORP·Filed 2013·Granted Jul 11, 2017·1 cites·12 claims
- 2158US11465314B2Method of producing insulator for spark plugDENSO CORP·Filed 2020·Granted Oct 11, 2022·0 cites·5 claims
- 2257US10333281B2Spark plugDENSO CORP·Filed 2018·Granted Jun 25, 2019·0 cites·12 claims
- 2357US8552629B2Spark plug designed to ensure desired degree of ignitability of fuelINOHARA TAKAYUKI·Filed 2012·Granted Oct 8, 2013·1 cites·8 claims
- 2457US5600296AThermistor having temperature detecting sections of substantially the same composition and dimensions for detecting subtantially identical temperature rangesNIPPON DENSO CO·Filed 1994·Granted Feb 4, 1997·21 cites·7 claims
- 2555US9660424B2Spark plugDENSO CORP·Filed 2015·Granted May 23, 2017·0 cites·3 claims
- 2654US10686299B2Spark plug of internal combustion engineDENSO CORP·Filed 2019·Granted Jun 16, 2020·0 cites·4 claims
- 2753US11056858B2Spark plug having a housing with a channel partDENSO CORP·Filed 2020·Granted Jul 6, 2021·0 cites·10 claims
- 2851US10505347B2Spark plug for internal combustion engineDENSO CORP·Filed 2017·Granted Dec 10, 2019·0 cites·8 claims
- 2950US11374385B2Spark plug, noble metal tip, and manufacturing method for noble metal tipDENSO CORP·Filed 2020·Granted Jun 28, 2022·0 cites·12 claims
- 3050US6873094B2Ignition device for internal combustion engine and a manufacturing method thereforDENSO CORP·Filed 2003·Granted Mar 29, 2005·3 cites·7 claims
- 3150US6254277B1Roller bearingKOYO SEIKO CO·Filed 1998·Granted Jul 3, 2001·14 cites·3 claims
- 3248US10439367B2Ignition plug for an internal combustion engine and method for manufacturing the sameDENSO CORP·Filed 2017·Granted Oct 8, 2019·0 cites·8 claims
- 3348US9059572B2Spark plug with center electrode for internal combustion engineDENSO CORP·Filed 2014·Granted Jun 16, 2015·0 cites·3 claims
- 3448US6966311B2Ignition apparatus for engineDENSO CORP·Filed 2003·Granted Nov 22, 2005·2 cites·9 claims
- 3547US10777974B2Spark plug for internal combustion engine that makes re-discharge less prone to occurDENSO CORP·Filed 2019·Granted Sep 15, 2020·0 cites·17 claims
- 3647US9948067B2Spark plugDENSO CORP·Filed 2017·Granted Apr 17, 2018·0 cites·8 claims
- 3747US5781098AThermistor type temperature sensor with adjustable output signal indicative of temperatureNIPPON DENSO CO·Filed 1996·Granted Jul 14, 1998·16 cites·16 claims
- 3846US10790640B2Spark plug for internal combustion engineDENSO CORP·Filed 2016·Granted Sep 29, 2020·0 cites·3 claims
- 3946US8061321B2Ignition deviceTAKEUCHI TAKAYUKI·Filed 2009·Granted Nov 22, 2011·0 cites·6 claims
- 4045US10931086B2Spark plug including a ground electrode having slanted surfaces and a facing portion facing a distal end surface of a center electrodeDENSO CORP·Filed 2020·Granted Feb 23, 2021·0 cites·12 claims
- 4145US7105990B2Spark plug for internal combustion engineDENSO CORP·Filed 2003·Granted Sep 12, 2006·2 cites·18 claims
- 4244US9371806B2Spark plug for internal combustion engineDENSO CORP·Filed 2014·Granted Jun 21, 2016·0 cites·5 claims
- 4344US8051822B2Spark plug and cylinder head assembly ensuring reliable ignition of air/fuel mixtureNIPPON SOKEN·Filed 2008·Granted Nov 8, 2011·0 cites·3 claims
- 4443US11005238B1Spark plugDENSO CORP·Filed 2020·Granted May 11, 2021·0 cites·20 claims
- 4543US2008309213A1Spark plug for internal combustion engineNIPPON SOKEN·Filed 2008·Application pending·0 cites
- 4642US9022010B2Ignition systemDENSO CORP·Filed 2013·Granted May 5, 2015·0 cites·4 claims
- 4741US10305258B2Ignition coil for internal combustion engineDENSO CORP·Filed 2016·Granted May 28, 2019·0 cites·1 claims
- 4841US9318880B1Spark plug for internal combustion engineDENSO CORP·Filed 2015·Granted Apr 19, 2016·0 cites·3 claims
- 4941US9287685B2Spark plug for internal combustion engineDENSO CORP·Filed 2013·Granted Mar 15, 2016·0 cites·19 claims
- 5041US9219350B1Spark plug for internal combustion engineDENSO CORP·Filed 2015·Granted Dec 22, 2015·0 cites·16 claims
Showing the top 50 of 63 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →