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:
Dec. 08, 1992
Filed:
Sep. 19, 1990
Applicant:
Inventor:
Kaname Fukao, Inuyama, JP;
Assignee:
NGK Insulators, Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
264 56 ; 264 86 ; 264220 ; 264225 ; 264226 ; 264227 ;
Abstract
A slip casting mold suitable to be used for the production of a hollow ceramic article for insert casting can be easily produced by a method wherein granules having an average grain size of at least 30 .mu.m are adhered to the surface of a mold to produce a mold having a 10 point average surface roughness R.sub.z of at least 30 .mu.m, and the resulting mold is used in the production of the slip casting mold.