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. 28, 1988
Filed:
Dec. 24, 1984
Applicant:
Inventors:
Takashi Tanaka, Yamagata, JP;
Kenro Hayashi, Hadano, JP;
Assignee:
Toshiba Ceramics Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
264 62 ; 264 63 ; 264 65 ; 264 82 ; 264344 ;
Abstract
A method of manufacturing heating furnace parts having high purity which comprises the steps of molding a raw powder mainly consisting of silicon carbide powder into a prescribed form, and subjecting the molded product to a purification treatment at a temperature ranging between 1,500.degree. and 2,100.degree. C. in an atmosphere containing a gas selected from the group consisting of halogen gas and hydrogen halide gas, and an inert gas applied as a carrier gas.