Patent ID: 10737257

Abstract:
A honeycomb structure includes a porous partition wall defining a plurality of cells, wherein the plurality of cells include a first cell and a second cell, an open frontal area of the first cell on the first end face is larger than that of the second cell on the second end face, on the partition wall disposed to surround the at least one first cell, a protrusion which protrudes into the first cell is provided with, the first protrusion and the second protrusion are each disposed not to overlap with each other on extended lines in extending directions of the respective protrusions, and a protrusion height (H1) of the first protrusion and a protrusion height (H2) of the second protrusion are each equal to or more than 15% and equal to or less than 90% with respect to a mutual distance W of the partition walls facing each other.