Patent ID: 7585478

Claim:
An exhaust-gas purifying catalyst, comprising: a mantle; at least three honeycomb-shaped supports fastened in the mantle so as to be separated at intervals, and comprising a first honeycomb-shaped support disposed on a most upstream side of the mantle with respect to a flow of exhaust gases at least two honeycomb-shaped supports disposed next to the first honeycomb-shaped support on a downstream side of the mantle with respect to the flow of exhaust gases; and a catalytic layer disposed on a surface of the at least three honeycomb-shaped supports, and comprising a loading layer formed on a surface of the at least three honeycomb-shaped supports and a catalytic ingredient loaded on the loading layer, the catalytic layer disposed on a surface of the first honeycomb-shaped support including at least rhodium (Rh) as the catalytic ingredient in a loading amount of 0.8 g or more with respect to 1 L of an apparent volume of the first honeycomb-shaped support, wherein the catalytic layer disposed on the surface of the at least three honeycomb-shaped supports excepting the first honeycomb-shaped support includes Rh as the catalytic ingredient in a loading amount less than that of the catalytic layer disposed on the first honeycomb-shaped support by a factor of from 0.5 to 0.7.