Patent ID: 7722791

Claim:
A method for manufacturing a honeycomb structure having plugging portions, the honeycomb structure having porous partition walls and a plurality of cells partitioned by the partition walls and formed so as to extend through the honeycomb structure from one end face of the honeycomb structure to the other end face thereof, the method comprising the steps of: attaching a mask having openings corresponding to openings of at least a part of the cells to the end faces of the honeycomb structure; supplying a plugging material having fluidity on the mask or on the same plane as a surface of the mask; and moving a pressurizing member disposed at an acute angle with respect to the surface of the mask and having a pressurizing face for pressurizing the plugging material to fill the plugging material into the cells of the honeycomb structure by pressurizing the plugging material with the pressurizing face, wherein the pressurizing face is a flat face and is disposed at an angle of 2° to 55° with respect to the surface of the mask.