Parkhurst, Wendel & Rossi
Catalytic converter for use in controlling automotive exhaust emissions
 The catalytic converter includes a first flow passage for an automotive exhaust gas and a second flow passage disposed parallel to the first flow passage to bypass the exhaust gas therethrough. The first flow passage contains a honeycomb heater or a heater catalyst which comprises a honeycomb heater with a catalyst carried thereon. At the beginning of an operation of any engine, the exhaust gas whose temperature is low is caused to flow through the first flow passage. When the temperature of the exhaust gas exceeds a predetermined value, the flow passage is switched from the first passage to the second flow passage. 
NGK Insulators, Ltd.
Y F Y F F Y H
Y10S F01N Y02T F01N F01N Y02A H05B
additional inventional additional additional inventional additional inventional
Takashi Hiroshige Fumio
Harada Mizuno Abe