Inventor · disambiguated record
Kouji Yamanaka
Also filed as: YAMANAKA KOUJI
3 granted patents·6 citations·filing 2012–2015
58Inventor score
Technology areasH01T
Top patents by PatentIndex Score
3 records- 0183US9397482B2Spark plug for internal combustion engineDENSO CORP·Filed 2015·Granted Jul 19, 2016·4 cites·1 claims
- 0257US8810119B2Spark plug for an internal combustion engineDENSO CORP·Filed 2013·Granted Aug 19, 2014·1 cites·4 claims
- 0348US8841825B2Spark plug designed to increase service life thereofYAMANAKA KOUJI·Filed 2012·Granted Sep 23, 2014·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →