Patent ID: 8329111

Claim:
A honeycomb filter comprising: a catalyst-carrying article where a plurality of honeycomb segments each is provided with a sell structure having a plurality of cells separated and formed by porous partition walls and an outer wall disposed in the outer periphery of the cell structure constitute a bonded article obtained by bonding the plurality of honeycomb segments at the outer wall and where a catalyst is loaded on the partition walls of a periphery-ground article obtained by grinding an outer peripheral portion of the bonded article, and an outer peripheral coat layer disposed on an outer peripheral face of the catalyst carrying article; wherein an amount of the catalyst loaded in the outer peripheral coat layer at a position 50 μm or more apart from a boundary face between the catalyst-carrying article and the outer peripheral coat layer is 5 mass % or less, mass % being a percentage of a mass of the catalyst in the outer peripheral coat layer, when a measurement piece having a cross section where a boundary portion between the catalyst-carrying article and the outer peripheral coat layer can be observed and being obtained by embedding a resin in the boundary portion in the cross section is measured by an energy dispersive fluorescent X-ray analysis using a scanning electron microscope.