Patent ID: 7850757

Claim:
A pillar-shaped honeycomb filter comprising: a pillar-shaped honeycomb structure integrally formed and comprising a wall portion defining a plurality of through holes which extend substantially along a longitudinal direction of the honeycomb structure, the honeycomb structure comprising inorganic fibers that are oriented substantially along the longitudinal direction; first and second lamination members each having a plurality of aligned through holes which extend substantially along the longitudinal direction and comprising inorganic fibers that are oriented substantially along a direction perpendicular to the longitudinal direction, the first and second lamination members being provided at first and second end faces of said honeycomb structure, respectively to align the aligned through holes with the through holes of said honeycomb structure; and a metal casing containing said honeycomb structure and said lamination member, first and second end members, having through holes, connected to first and second end portions of said metal casing, respectively to secure said honeycomb structure and said lamination member, each of through holes of said honeycomb filter formed by said honeycomb structured body, first and second lamination members, and first and second end members being sealed at either one end portion.