The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2018
Filed:
Mar. 04, 2015
Denso Corporation, Kariya, Aichi-pref., JP;
Koji Tamai, Nagoya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A honeycomb structure body has cell walls arranged in a lattice arrangement and a plurality of cells surrounded by the cell walls. The honeycomb structure body has a cell density distribution in which a cell density is reduced continuously or stepwise from a center portion to an outer peripheral portion in a radial direction. The honeycomb structure body has wave shaped cell walls and flat shaped cell walls which extend in an axial direction. Particularly, the wave shaped cell walls are formed in a formation section having a cell density ratio of not more than 0.85 to a maximum cell density. The region having the flat shaped cell walls is inside the region having the wave shaped cell walls.