Patent ID: 7695798

Claim:
A honeycomb structure for a catalyst carrier comprising: porous partition walls having a plurality of pores and arranged so as to form a plurality of cells which connect two end faces to each other; and plugging portions arranged so as to alternately plug one of the end portions of each of the cells in the two end faces, wherein a geometrical surface area (GSA: a value ((S 1 +S 2 )/V) obtained by dividing a total of the whole inner surface area (S 1 ) excluding the cell pores and the whole inner surface area (S 2 ) of the pores by the whole volume (V) of the honeycomb structure) is 80 cm2/cm3 or more and less than 300 cm2/cm3, and wherein a ratio of the cells having a cell deformation degree (a difference (W−d) between a width (W) of the cell and a maximum dimension (d) of a predetermined cell gauge passable through the cell) of 0.05 mm or more among the plurality of cells is 10% or more.