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:
May. 31, 2011
Filed:
Apr. 01, 2010
Applicants:
Manabu Nishizawa, Tokyo, JP;
Yuya Shimada, Tokyo, JP;
Junichiro Kase, Tokyo, JP;
Inventors:
Assignee:
Asahi Glass Company, Limited, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 3/085 (2006.01); C03C 3/091 (2006.01);
U.S. Cl.
CPC ...
Abstract
A glass plate for a substrate, which contains no BO, and which can be as a glass plate for an LCD panel, which comprises, as a glass matrix composition as represented by mass % based on oxide of SiO: 68 to 80, AlO: 0.1 to 5, MgO: 9.5 to 12, CaO+SrO+BaO: 0 to 2, and NaO+KO 6 to 14, and which has a density of at most 2.45 g/cm, an average coefficient of thermal expansion from 50 to 350° C. of at most 75×10/° C., a glass transition point of at least 600° C. and a brittleness of at most 6.5 μm.