Inventor
SUMOYAMA DAISUKE
JP21 patents
⚠️ This page may combine multiple inventors who share the name “SUMOYAMA DAISUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NGK SPARK PLUG CO
16 patentsUS10033163B1Jul 24, 2018
Spark plug
NGK SPARK PLUG CO8 citations83
US9853423B1Dec 26, 2017
Spark plug
NGK SPARK PLUG CO11 citations81
US9705292B2Jul 11, 2017
Spark plug and method for producing the same
NGK SPARK PLUG CO3 citations72
US9948069B2Apr 17, 2018
Spark plug
NGK SPARK PLUG CO5 citations71
US9627857B2Apr 18, 2017
Spark plug
NGK SPARK PLUG CO3 citations70
US10153621B2Dec 11, 2018
Spark plug
NGK SPARK PLUG CO2 citations68
US10312669B2Jun 4, 2019
Spark plug
NGK SPARK PLUG CO1 citations62
US10965104B2Mar 30, 2021
Spark plug
NGK SPARK PLUG CO0 citations61
US9887519B1Feb 6, 2018
Spark plug
NGK SPARK PLUG CO0 citations51
US10958045B2Mar 23, 2021
Spark plug
NGK SPARK PLUG CO0 citations50
US9548593B2Jan 17, 2017
Spark plug
NGK SPARK PLUG CO0 citations50
US10447014B1Oct 15, 2019
Spark plug and manufacturing method therefor
NGK SPARK PLUG CO0 citations48
US9948068B2Apr 17, 2018
Spark plug
NGK SPARK PLUG CO0 citations41
US10498110B2Dec 3, 2019
Spark plug
NGK SPARK PLUG CO0 citations40
US9197036B2Nov 24, 2015
Spark plug
NGK SPARK PLUG CO0 citations38
US10186845B2Jan 22, 2019
Electrode tip for spark plug, and spark plug
NGK SPARK PLUG CO0 citations36