Patent ID: 7503957

Claim:
A honeycomb structure, comprising: first and second end portions located at two opposite ends along an axial direction of the honeycomb structure; X partition walls arranged in an X-direction that form a plurality of cells, the cells extending from the first end portion to the second end portion along the axial direction, the X-direction being substantially perpendicular to the axial direction, the cells having a cell pitch in the X-direction; and Y partition walls arranged in a Y-direction intersecting the X partition walls, the Y-direction being substantially perpendicular to the axial direction and at an angle from the X-direction, wherein: intersecting portions of the X and Y partition walls include a lacking intersecting portion in at least one of the first and second end portions; the lacking intersecting portion is configured by a part of an intersecting portion of the X and Y partition walls that is lacking, wherein the lacking intersecting portion includes a single intersection of the X-direction partition wall and the Y-direction partition wall; and the lacking intersecting portion sustains a width in a direction that is perpendicular to the axial direction, the width decreasing along the axial direction from an end surface of the one of the first and second end portions towards an interior of the one of the first and second end portions.