HONEYCOMB FILTER, AND METHOD FOR MANUFACTURING HONEYCOMB FILTER.

摘要

A honeycomb filter (100) is provided with a columnar body having a plurality of axially extending inlet-side passages (first passages) (70Hin) and outlet-side passages (second passages) (70Hout), and partition walls (W) for separating adjacent passages. The cross-sectional areas of the inlet-side passages (70Hin) at one end surface of the columnar body are larger than the cross-sectional areas of the inlet-side passages at an axially center part thereof, and the cross-sectional areas of the outlet-side passages (70Hout) are closed at the one end surface. At the axially center part of at least one of the inlet-side passages (70Hin), corner sections (C) formed between pairs of adjacent partition walls (W) that form the inlet-side passage (70Hin) have axially extending protrusions (first protrusions) (WP) that protrude into the inlet-side passage (70Hin).