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:
Nov. 12, 1991
Filed:
Mar. 21, 1990
Applicant:
Inventors:
Takashi Miyazaki, Tokyo, JP;
Takashi Inamochi, Tokyo, JP;
Masaaki Kitamura, Tokyo, JP;
Shohei Hayashi, Tokyo, JP;
Assignee:
G-C Dental Industrial Corp., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428698 ; 106-113 ; 106-114 ; 106-126 ; 420585 ; 433206 ; 433207 ; 433209 ; 4332121 ; 4332281 ; 428457 ; 428469 ; 428472 ; 428701 ; 428688 ; 428702 ; 428704 ;
Abstract
A dental prosthesis comprises an inner layer portion and an outer layer portion. The outer layer portion is a dental porcelain material, while the inner layer portion is a sintered product which, after sintering, is composed of: (i) 40 to 95% by weight of one or (two or) more electric conductive ceramic materials selected from the group consisting of nitride ceramics, boride ceramics and carbide ceramics, all having a specific electric resistance of 10.sup.-1 .OMEGA..multidot.cm or below, and (ii) 5 to 60% by weight of the following (A) and/or (B):