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:
Aug. 24, 1999
Filed:
Aug. 27, 1997
Applicant:
Inventors:
Takahiro Nakayama, Takasago, JP;
Nobuo Kageyama, Takasago, JP;
Atsuyoshi Takenaka, Yokohama, JP;
Yoichi Kamisuki, Takasago, JP;
Assignee:
Asahi Glass Company Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501 88 ; 501 89 ; 156345 ;
Abstract
A highly corrosion-resistant silicon carbide product consisting of a sintered body having a content of .alpha.-form silicon carbide of at least 90 wt %, wherein the content of iron is at most 1 ppm, the content of aluminum is at most 5 ppm, and the content of calcium is at most 3 ppm.