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US Patent 7560154 Method for manufacturing honeycomb structure and the honeycomb structure

Patent 7560154 was granted and assigned to NGK Insulators on July, 2009 by the United States Patent and Trademark Office.

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Patent
Patent
1

Patent attributes

Current Assignee
NGK Insulators
NGK Insulators
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
75601541
Patent Inventor Names
Shigeki Katoh1
Date of Patent
July 14, 2009
1
Patent Application Number
113699581
Date Filed
March 8, 2006
1
Patent Citations Received
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US Patent 11707729 Self-supporting structures having active materials
2
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US Patent 11999074 Systems and methods for stiffening wet extrudate by circumferential irradiation
3
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US Patent 11655910 Adsorption processes and systems utilizing step lift control of hydraulically actuated poppet valves
4
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US Patent 11854180 Non-contact method of characterizing isostatic strength of cellular ceramic articles
5
Patent Primary Examiner
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Timothy C. Vanoy
1
Patent abstract

A method for manufacturing a honeycomb structure includes: machining a peripheral portion of a honeycomb substrate having a plurality of cells separated by porous partition walls made of ceramic, applying slurry for forming a coating member on a face exposed to outer periphery of partition walls positioned in the outermost periphery to obtain a honeycomb body with slurry, and subjecting the honeycomb body with slurry to heat-drying to obtain a honeycomb structure having the coat member in the outer periphery. The slurry contains a powder of potsherd having a particle size of 15 to 75 μm, and has a water content of 26 to 34% by mass. In the method, even if the slurry is subjected to compulsory drying from the beginning, the coating member hardly has cracks, and a honeycomb structure having no cracks on the coating member can be obtained.

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