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:
Sep. 08, 2015
Filed:
Jun. 06, 2014
Ngk Insulators, Ltd., Nagoya, JP;
Tomokatsu Aoyama, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
There is disclosed a honeycomb structure in which a ring crack is not easily generated. A honeycomb structure includes a honeycomb substrate, and a bulging portion continuously or intermittently surrounding, in a ring shape, at least a part of an outer periphery of the honeycomb substrate. The outer periphery of the honeycomb substrate has one or a plurality of stress relaxing portions which are crevices each having an open end in the surface over a region of −5 to +10 mm or less from a reference bonded portion to a tapered surface, and a total of lengths of all the stress relaxing portions is 3% or more of a circumferential length of the honeycomb substrate.