Inventor · disambiguated record
Naoki Kokubo
Also filed as: KOKUBO NAOKI
21 granted patents·4 pending applications·297 citations·filing 1993–2016
95Inventor score
Top patents by PatentIndex Score
25 records- 0196US7133766B2Engine combustion state detection deviceDENSO CORP·Filed 2005·Granted Nov 7, 2006·39 cites·13 claims
- 0290US7197916B2Misfire detector using linear detection of crankshaft angular speedDENSO CORP·Filed 2005·Granted Apr 3, 2007·26 cites·24 claims
- 0389US8868316B2Controller of valve timing control apparatus and valve timing control apparatus of internal combustion engineKOKUBO NAOKI·Filed 2011·Granted Oct 21, 2014·7 cites·17 claims
- 0488US5604304AEngine cycle timing and synchronization based on crankshaft angle measurementsNIPPON DENSO CO·Filed 1996·Granted Feb 18, 1997·64 cites·21 claims
- 0585US6688286B2Knock control apparatus for engineDENSO CORP·Filed 2002·Granted Feb 10, 2004·50 cites·34 claims
- 0684US8752515B2Variable valve timing control apparatus of internal combustion engineYAMANAKA ATSUSHI·Filed 2012·Granted Jun 17, 2014·6 cites·18 claims
- 0784US8215833B2Diagnostic apparatus for vehicle cooling systemKOUDA AKINORI·Filed 2009·Granted Jul 10, 2012·18 cites·4 claims
- 0882US6520149B2Knock control apparatus and method for enginesDENSO CORP·Filed 2001·Granted Feb 18, 2003·26 cites·11 claims
- 0977US9470118B2Valve timing control apparatus for internal combustion engine and controller for valve timing control apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2013·Granted Oct 18, 2016·2 cites·18 claims
- 1072US7748216B2Internal combustion engineTOYOTA MOTOR CO LTD·Filed 2007·Granted Jul 6, 2010·5 cites·8 claims
- 1171US5329904AEngine control apparatus for discriminating cylindersNIPPON DENSO CO·Filed 1993·Granted Jul 19, 1994·24 cites·13 claims
- 1270US8899197B2Valve-timing control apparatus for internal combustion engineKOKUBO NAOKI·Filed 2011·Granted Dec 2, 2014·2 cites·14 claims
- 1370US7912599B2Internal combustion engine control apparatus and methodTOYOTA MOTOR CO LTD·Filed 2008·Granted Mar 22, 2011·7 cites·16 claims
- 1470US7827948B2Variable valve timing control apparatus of internal combustion engineHITACHI LTD·Filed 2008·Granted Nov 9, 2010·4 cites·24 claims
- 1566US9523295B2Controller of variable valve apparatus of internal combustion engine and variable valve system of internal combustion engineHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Dec 20, 2016·1 cites·21 claims
- 1666US8151627B2Knock detection device and knock detection system diagnosis deviceMASUDA SATOSHI·Filed 2009·Granted Apr 10, 2012·6 cites·11 claims
- 1765US2017002699A1Valve timing control apparatus for internal combustion engine and controller for valve timing control apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Application pending·0 cites
- 1864US8443772B2Electric valve timing control device of internal combustion engineKOKUBO NAOKI·Filed 2010·Granted May 21, 2013·2 cites·19 claims
- 1955US8056396B2Knock detection device and knock detection system diagnosis deviceMASUDA SATOSHI·Filed 2009·Granted Nov 15, 2011·3 cites·8 claims
- 2052US8096166B2Knock detection device for internal combustion engineMASUDA SATOSHI·Filed 2009·Granted Jan 17, 2012·2 cites·12 claims
- 2143US8452519B2Valve timing control apparatus for internal combustion engineKOKUBO NAOKI·Filed 2009·Granted May 28, 2013·0 cites·21 claims
- 2241US2008017149A1Phase angle detection device and internal combustion engine valve timing control apparatus using the sameHITACHI LTD·Filed 2007·Application pending·0 cites
- 2340US2009217738A1Knock detection device for internal combustion engineDENSO CORP·Filed 2009·Application pending·0 cites
- 2437US2013206087A1Valve timing control apparatus for internal combustion engineTADOKORO RYO·Filed 2012·Application pending·0 cites
- 2535US5494016AIgnition timing control apparatus for an internal combustion engineNIPPON DENSO CO·Filed 1995·Granted Feb 27, 1996·3 cites·15 claims
Join the waitlist — get patent alerts
Get an alert when Naoki Kokubo files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →