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. 05, 2013
Filed:
Jul. 25, 2011
Applicants:
Naoya Wada, Tokyo, JP;
Nobuhiro Nakamura, Tokyo, JP;
Nao Ishibashi, Tokyo, JP;
Inventors:
Assignee:
Asahi Glass Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/17 (2006.01); C03C 3/145 (2006.01); C03C 3/19 (2006.01); C03C 3/21 (2006.01); B32B 17/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A glass composition having high refractive index, softening property at low temperature and small average thermal expansion coefficient, and a member provided with the composition on a substrate, are provided. The glass composition of the present invention has a refractive index (n) of from 1.88 to 2.20, a glass transition temperature (T) of from 450 to 490° C., and an average thermal expansion coefficient at temperatures from 50° C. to 300° C. (α) of from 60×10/K to 90×10/K, and includes BiOin an amount of from 5 to 25% in terms of mol % on the basis of oxides.