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:
Oct. 05, 2021
Filed:
Dec. 16, 2020
Applicant:
Agc Inc., Chiyoda-ku, JP;
Inventor:
Satoshi Ogami, Chiyoda-ku, JP;
Assignee:
AGC Inc., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 21/00 (2006.01); C03C 4/18 (2006.01);
U.S. Cl.
CPC ...
C03C 21/002 (2013.01);
Abstract
A chemically strengthened glass obtained by chemically strengthening a lithium-containing aluminosilicate glass, when representing a sheet thickness of the chemically strengthened glass by t (μm) and an internal stress at a depth×(μm) from a surface of the chemically strengthened glass by σ(x) (MPa), has a value of a ratio C=rE/rEbeing greater than or equal to 0.7 and less than 1.0 where rE (kJ/m) is calculated from Expression (3) described above and rE=16×t/1000+3.