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:
Mar. 24, 2009
Filed:
Dec. 10, 2003
Yukihito Ichikawa, Nagoya, JP;
Mitsuru Miyamoto, Kariya, JP;
Shinya Mori, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
There is disclosed a plugged honeycomb structurehaving: partition wallsarranged in such a manner as to form a plurality of cellsextending from one end faceto the other end facethrough an axial direction; an outer peripheral wallwhich surrounds an outer periphery of the partition wall; and plugging portionsdisposed in such a manner as to plug the cellin either end face. In the plugged honeycomb structure, at least some of plugging portionsarranged in at least the vicinity of the outer peripheral wall protrude from the end faceor. Alternatively, there are provided a plugged honeycomb structurein which a tip of the protruding portionis substantially flat or has a moderate curved face, and a method of manufacturing the structure. The plugged honeycomb structuredoes not easily break, is capable of enhancing durability, and is preferably usable in a filter such as a diesel particulate filter (DPF).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile