Patent ID: 8128723

Claim:
A ceramic filter comprising: a plurality of honeycomb segments bonded to one another, the segments having been partitioned by porous partition walls, the porous partition walls forming a plurality of through channels that are configured to function as exhaust gas flow passages, each through channel having an inlet and an outlet and being formed in a longitudinal direction of each of the honeycomb segments, wherein: the plurality of through channels comprises: a first type of through channels that are outflow holes, each being plugged at the inlet and open at the outlet; a second type of through channels that are inflow holes, each being open at the inlet and plugged at the outlet; and a third type of through channels that are through-cells, each being open at both the inlet and the outlet so that a fluid can pass through the inlet to the outlet, the third type of through channels being partially plugged at both ends.