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:
Mar. 11, 2014
Filed:
Jan. 25, 2013
Asahi Glass Company, Limited, Tokyo, JP;
Masamichi Tanida, Tokyo, JP;
Naoya Wada, Tokyo, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
A glass composition and a light extracting member using the same is provided, where the glass composition does not substantially contain a lead oxide and an alkali metal oxide and has a glass transition temperature of 530° C. or less and acid resistance property. An alkali-free cover glass composition is also provided which does not substantially contain a lead oxide and an alkali metal oxide; has a refractive index (n) of 1.7 to 2.3; has a glass transition temperature of 530° C. or less; has a dissolution depth of less than 1.3 μm as measured by an acid dipping weight loss measurement method; and contains 8 to 25% of NbOin terms of mol % on the basis of an oxide thereof.