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. 17, 2016
Filed:
Mar. 07, 2014
Ngk Insulators, Ltd., Nagoya, JP;
Tomokatsu Aoyama, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A honeycomb structure includes a honeycomb structure body constituted of a first region which is an inside region and a second region which is an outside region surrounding a periphery of the first region. An open area ratio in the first region is 83% or more and a porosity of partition walls is from 20 to 60%. A thickness tof the partition walls constituting the first region is 0.11 mm or less, a thickness tof the partition walls constituting the second region is larger than the thickness tof the partition walls, a ratio (t/t) between a thickness tof the partition walls forming first complete cells from the outermost periphery of the honeycomb structure body toward a center thereof in the second region and the thickness tof the partition walls is from 1.2 to 1.4, and a partition wall strength index A is 4.0 or more.