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:
Feb. 25, 2025
Filed:
Nov. 09, 2020
Applicant:
Agc Inc., Tokyo, JP;
Inventors:
Yusuke Kobayashi, Tokyo, JP;
Izuru Kashima, Tokyo, JP;
Kazutaka Ono, Tokyo, JP;
Seiji Inaba, Tokyo, JP;
Hirofumi Yamamoto, Tokyo, JP;
Kiyoshi Tamai, Tokyo, JP;
Assignee:
AGC INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/087 (2006.01); B32B 17/10 (2006.01); C03C 4/18 (2006.01); C03C 21/00 (2006.01);
U.S. Cl.
CPC ...
C03C 3/087 (2013.01); B32B 17/10119 (2013.01); B32B 17/10137 (2013.01); C03C 4/18 (2013.01); C03C 21/002 (2013.01); B32B 2315/08 (2013.01); B32B 2457/14 (2013.01); C03C 2204/00 (2013.01);
Abstract
A supporting glass substrate includes a compression stress layer on a surface thereof, and has an average thermal expansion coefficient at 50° C. to 200° C. that is 7 ppm/° C. to 15 ppm/° C., an internal tensile stress that is 5 MPa to 55 MPa, and a depth of the compression stress layer that is 10 μm to 60 μm.