Parkhurst, Wendel & Rossi
Method of operating catalytic converter
 In a catalytic converter operating method according to the present invention, a heater is energized at a predetermined power level or above and thereby heated substantially concurrently with the operation of an engine. During the heating, an oxidizing gas is introduced into the catalytic converter. When the temperature of the heater exceeds a value at which a main catalyst of the catalytic converter or light-off catalyst carried on the heater functions, the power level is reduced by an output adjuster and supply of the oxidizing gas is suspended. 
NGK Insulators, Ltd.
Y H F
Y02T H05B F01N
additional inventional inventional
Abe Hiroshige Takashi
Fumio Mizuno Harada