Inventor · disambiguated record
Masakuni Yokoyama
Also filed as: YOKOYAMA MASAKUNI
10 granted patents·76 citations·filing 2002–2009
86Inventor score
Top patents by PatentIndex Score
10 records- 0187US6763799B2Internal combustion engine and control method of the sameTOYOTA MOTOR CO LTD·Filed 2002·Granted Jul 20, 2004·40 cites·28 claims
- 0269US8201396B2Exhaust gas cleaning apparatus for internal combustion engineKAWAMURA JUN·Filed 2009·Granted Jun 19, 2012·9 cites·14 claims
- 0366US7797925B2Exhaust gas purifying system for internal combustion engineDENSO CORP·Filed 2006·Granted Sep 21, 2010·4 cites·18 claims
- 0465US7886521B2Diagnosis device of exhaust purification catalystDENSO CORP·Filed 2007·Granted Feb 15, 2011·8 cites·15 claims
- 0563US7797097B2Exhaust purification device for internal combustion engineDENSO CORP·Filed 2008·Granted Sep 14, 2010·5 cites·6 claims
- 0658US8091338B2Exhaust gas cleaning apparatus for lean burn internal combustion engineYOKOYAMA MASAKUNI·Filed 2008·Granted Jan 10, 2012·6 cites·6 claims
- 0757US7707823B2Exhaust purification device for internal combustion engineDENSO CORP·Filed 2007·Granted May 4, 2010·4 cites·10 claims
- 0844US7769531B2Control device of internal combustion engineDENSO CORP·Filed 2009·Granted Aug 3, 2010·0 cites·8 claims
- 0938US8033103B2Exhaust purification deviceDENSO CORP·Filed 2007·Granted Oct 11, 2011·0 cites·18 claims
- 1035US7836686B2Exhaust gas purifying system for internal combustion engineDENSO CORP·Filed 2006·Granted Nov 23, 2010·0 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Masakuni Yokoyama 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 →