US Patent 7541006 Honeycomb structured body

A honeycomb structured body of the present invention is configured by assembling one or at least two pillar-shaped porous ceramic member in which a number of through holes are longitudinally placed in parallel with one another with a partition wall therebetween, either one of ends of these through holes being sealed, wherein the porous ceramic member is a composite made of ceramic particles and silicon, and a catalyst is supported on the partition wall, and a relationship between an aperture ratio α (%) of the honeycomb structured body and an supported amount β (g/L) of the catalyst satisfies the following inequality (1):9.8−0.125×α≦β  (1).