Sughrue, Mion, Zinn, Macpeak and Seas
Spark plug and the process for production thereof
 A spark plug with a spark electrode prepared by mixing at least a matrix material of a titanium compound (e.g., TiO.sub.2, TiC, TiN, etc.) with an electrical conductivity-imparting substance (e.g., Pt and Pd, or a mixture of Pt, Pd and a noble metal, e.g., Au, Ru, Ag, Rh, etc.) and sintering the resulting mixture. 
NGK Spark Plug Co. Ltd.
H
H01T
inventional
Shunichi Kanemitsu Yasuhiko
Takagi Nishio Suzuki