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. 09, 2015
Filed:
Jul. 25, 2011
Seigo Ohta, Chiyoda-ku, JP;
Seigo Ohta, Chiyoda-ku, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
To provide a substrate for mounting a light-emitting device, which is provided with a silver reflection layer having a high reflectance and being less susceptible to deterioration of the reflectance due to corrosion and which has an improved light extraction efficiency. A substrate for mounting a light-emitting element, which comprises a substrate main body, a silver reflection layercomposed mainly of silver or a silver alloy, formed on the substrate main body, and a protective layer formed so as to cover the entire surface of the silver reflection layer, wherein the protective layercontains an alumina filler and further contains a glass constituting the protective layer, having silver ions diffused therein. The concentration of silver ions contained in the glass of the protective layeris at least 0.5 mass % and at most 5.0 mass %.