Nixon & Vanderhye PC
Honeycomb structure constituted by main and sub honeycomb structures
A honeycomb structure comprising at least one main honeycomb structure 10 and sub-honeycomb structures 21, 22 axially disposed, in series, on both end surfaces of the main honeycomb structure 10. Partial plugs 15 are constituted for some of the cells 11 of the main honeycomb structure 10 by facing the intersecting portions of partitioning walls 211, surrounding the cells of the sub-honeycomb structure 21 disposed adjacent to the main honeycomb structure with some of the cells of main honeycomb structure, and the arrangement of the partial plugs 15 at one end surface 101 of the main honeycomb structure differs from that at the other end surface of the main honeycomb structure 10. 
Denso Corporation
F Y F F F Y F
F01N Y02T F01N F01N F01N Y10T F01N
inventional additional inventional additional inventional additional additional
Mamoru Mikio
Nishimura Ishihara