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:
Oct. 27, 1998
Filed:
Apr. 30, 1996
Applicant:
Inventors:
Assignee:
Korea Institute of Science & Technology, Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ; C23C / ; C04B / ;
U.S. Cl.
CPC ...
4272554 ; 427399 ; 501103 ; 501104 ; 501105 ; 501152 ;
Abstract
A zirconia material resistant to low temperature degradation and process for manufacturing thereof includes heat treating zirconia material or zirconia composite material at 1200.degree.-1700.degree. C. in the presence of nitrogen source.