Alumina-spinel diffusion semiconductor
Cavity discharge igniter
Contact glass composition for use in spark plugs
Double sliding spark plug - thunder II
Electrical igniters
Igniter electrode life control
Igniter plug
Igniter with wear indicator
Igniters
Igniters and methods of manufacture of igniters
Long distance discharge gap type spark plug
Low-voltage type igniter plug having semi-conductor structure fo
Plasma ceramic coating to supply uniform sparking action in comb
Plasma ignition system with recess porton in the center...
Plasma jet ignition plug
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