Inventor · disambiguated record
Kenka Tsubota
Also filed as: TSUBOTA KENKA
4 granted patents·2 citations·filing 2006–2012
59Inventor score
Technology areasH01T
Top patents by PatentIndex Score
4 records- 0157US8258686B2Spark plug for internal combustion engineKANAO KEIJI·Filed 2006·Granted Sep 4, 2012·2 cites·9 claims
- 0248US8523624B2Spark plug for internal combustion engine and manufacturing method thereofKANAO KEIJI·Filed 2012·Granted Sep 3, 2013·0 cites·6 claims
- 0342US8398447B2Method for manufacturing spark plug for internal-combustion engineHANASHI KEN·Filed 2012·Granted Mar 19, 2013·0 cites·17 claims
- 0439US8339021B2Spark plug for internal-combustion engine and method for manufacturing the sameHANASHI KEN·Filed 2008·Granted Dec 25, 2012·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →