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. 09, 2006
Filed:
Sep. 18, 2002
Naomi Noda, Ichinomiya, JP;
Junichi Suzuki, Kuwana, JP;
Naomi Noda, Ichinomiya, JP;
Junichi Suzuki, Kuwana, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A honeycomb structurehaving numerous through channels passing through along the X axis and being partitioned with porous partition wallswhich is characterized in that: a total pore volume (D) cc/g in end portions of the partition wallsis smaller than the total pore volume in other portions of partition wallsand relationships between the total pore volume (D) cc/g in end portions and the partition wall thickness (B) μm and cell pitch (C) mm in other portions of partition walls are defined as; the total pore volume (D)≦the partition wall thickness (B)×0.004, and the total pore volume (D)≦(1/the cell pitch (C))×0.18; and a method of producing a honeycomb structure. There is provided with the honeycomb structureshaving various cell structures and being reinforced at their end portions, with exhibiting satisfactory and practical erosion resistance.