Sintered ceramic body for a spark plug
Small-sized spark plug having a spark gap parallel to an axis ru
Spark plug
Spark plug
Spark plug employing both corona discharge and arc discharge and
Spark plug for an internal combustion engine and method for...
Spark plug for an otto-type internal combustion engine
Spark plug for internal combustion engine
Spark plug for internal combustion engines
Spark plug having a creepage spark gap
Spark plug having combined surface and air gaps
Spark plug having dual gaps for internal combustion engines
Spark plug with a surface discharge section
Spark plug with a wide discharge gap
Spark plug with combined surface and air spark paths
Sparkplug with improved antifouling performance
Surface gap igniter