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:
Jun. 20, 1989
Filed:
Mar. 08, 1988
Applicant:
Inventors:
Assignee:
NGK Insulators, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428116 ; 156 89 ; 26417712 ; 428188 ; 502527 ;
Abstract
An extrusion molded ceramic honeycomb structural body having a plurality of through-holes surrounded by partition walls, and a coating layer formed on an outer periphery wall of the main ceramic honeycomb structural body which has an outer diameter smaller than a predetermined dimension, whereby the coating layer provides the outer diameter of the structural body with an outer diameter having a predetermined dimensional tolerance.