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. 03, 1988
Filed:
Nov. 05, 1986
Applicant:
Inventors:
Tadaaki Matsuhisa, Kasugai, JP;
Kiminari Kato, Nagoya, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B32B / ;
U.S. Cl.
CPC ...
156 89 ; 15624411 ; 15624424 ; 156500 ; 165 10 ; 26417711 ; 425461 ; 425466 ; 425467 ; 428116 ;
Abstract
Disclosed herein is a method of manufacturing a ceramic honeycomb structural body and a die for extruding a ceramic honeycomb structural body wherein the die includes molding slits having a profile corresponding to a sectional profile of a ceramic honeycomb structural body and ceramic raw batch material supply holes through which a ceramic raw batch material is supplied to the molding slits. The pitch ratio between a short side and a long side of the molding slits is substantially 1:.sqroot.3.