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. 29, 1989
Filed:
Apr. 06, 1988
Applicant:
Inventors:
Peter R Prud'Homme van Reine, Eindhoven, NL;
Leonardus J van Ijzendoorn, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; C04B / ;
U.S. Cl.
CPC ...
501152 ; 501103 ; 423263 ; 423600 ;
Abstract
Ceramic translucent material mainly comprising densely sintered polycrystalline yttrium aluminum garnet in which between 20 and 1500 ppm by weight of ZrO.sub.2 is added to the yttrium aluminum garnet. When manufacturing an article of such a ceramic translucent material, a thermal treatment is carried out at a temperature of more than 1400.degree. C. in an oxidizing atmosphere after sintering.