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:
Nov. 21, 2006
Filed:
Dec. 04, 2002
Jun Fujita, Nagoya, JP;
Jun Fujita, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
There is provided a honeycomb structureproduced by bonding a plurality of honeycomb segmentsinto one piece via a bonding layer, each segmenthaving a number of through-holesdivided from each other by porous partition wallsand extending in the axial direction of the honeycomb segment. The bonding layercomprises at least one cement layerand at least one undercoat layerpresent between the honeycomb segmentand the cement layer. There is provided a process for producing a honeycomb structure, wherein bonding the honeycomb segmentscomprises applying at least one layer of an undercoat on each honeycomb segment, applying at least one layer of a cement, and bonding the honeycomb segments into one piece. The honeycomb structure has a high bonding strength and hardly gives defects such as cracks in bonded portion.