Inventor
SEGAWA MASAYUKI
JP6 patents
⚠️ This page may combine multiple inventors who share the name “SEGAWA MASAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NGK SPARK PLUG CO
5 patentsUS6864622B2Mar 8, 2005
Spark plug
NGK SPARK PLUG CO17 citations91
US6664719B2Dec 16, 2003
Spark plug
NGK SPARK PLUG CO20 citations91
US6724133B2Apr 20, 2004
Spark plug with nickel alloy electrode base material
NGK SPARK PLUG CO18 citations83
US6710523B2Mar 23, 2004
Spark plug internal combustion engine
NGK SPARK PLUG CO13 citations83
US9948069B2Apr 17, 2018
Spark plug
NGK SPARK PLUG CO5 citations71