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:
Aug. 20, 2024
Filed:
Feb. 25, 2022
Applicant:
Agc Inc., Tokyo, JP;
Inventors:
Kaname Sekiya, Tokyo, JP;
Yusuke Fujiwara, Tokyo, JP;
Assignee:
AGC INC., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/04 (2006.01); B32B 17/06 (2006.01); C03C 3/083 (2006.01); C03C 4/18 (2006.01); C03C 21/00 (2006.01);
U.S. Cl.
CPC ...
C03C 21/002 (2013.01); C03C 3/083 (2013.01); C03C 4/18 (2013.01); C03C 2204/00 (2013.01);
Abstract
The present invention relates to a chemically strengthened glass having a thickness t (mm), in which a first-order derivative CS' of a stress value CS(MPa) is −4.7 or larger in a range of CS≥0 in a profile of the stress value CS(MPa), in which the stress value CS(MPa) is a function of depth×(μm) from a glass surface, and in which the stress value CS(MPa) is measured by a scattered light photoelastic stress meter, and a manufacturing method thereof.