Inventor
OZEKI KEIJI
JP14 patents
⚠️ This page may combine multiple inventors who share the name “OZEKI KEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NGK SPARK PLUG CO
12 patentsUS7185621B2Mar 6, 2007
Glow plug with combustion pressure detecting function
NGK SPARK PLUG CO14 citations84
US10027093B2Jul 17, 2018
Spark plug
NGK SPARK PLUG CO3 citations72
US7272970B2Sep 25, 2007
Spark plug having combustion pressure detecting function
NGK SPARK PLUG CO6 citations62
US9306375B2Apr 5, 2016
Spark plug
NGK SPARK PLUG CO2 citations60
US9276383B2Mar 1, 2016
Spark plug, and production method therefor
NGK SPARK PLUG CO1 citations51
US11476644B2Oct 18, 2022
Spark plug
NGK SPARK PLUG CO0 citations48
US10256610B2Apr 9, 2019
Spark plug
NGK SPARK PLUG CO0 citations41
US9620935B2Apr 11, 2017
Spark plug
NGK SPARK PLUG CO0 citations41
US10008834B2Jun 26, 2018
Method for manufacturing spark plug
NGK SPARK PLUG CO0 citations39
US9660423B2May 23, 2017
Spark plug having an electrode structure that effectively suppresses flashover
NGK SPARK PLUG CO0 citations39
US8791627B2Jul 29, 2014
Spark plug configured to reduce the occurance of flashover
NGK SPARK PLUG CO0 citations38
US9225150B2Dec 29, 2015
Spark plug
NGK SPARK PLUG CO0 citations37