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, 1995
Filed:
Sep. 03, 1993
Applicant:
Inventors:
Akira Narukawa, Yokkaichi, JP;
Mitsuyoshi Watanabe, Nagoya, JP;
Assignee:
NGK Insulators, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ; B28B / ;
U.S. Cl.
CPC ...
216 91 ; 252 795 ; 216 97 ; 216 99 ;
Abstract
Method of removing a layer of glass formed on a sintered body which is manufactured by hot isostatic pressing of a preformed body of inorganic powder in a pressure medium at a sintering temperature, wherein the sintered body of inorganic powder is retained in an alkali solution of at least 2 percent by weight at a temperature not less than 100.degree. C. for not less than one hour.