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. 26, 2025
Filed:
Apr. 24, 2024
Applicant:
Agc Inc., Tokyo, JP;
Inventors:
Qing Li, Tokyo, JP;
Yusuke Arai, Tokyo, JP;
Akio Koike, Tokyo, JP;
Kazutaka Ono, Tokyo, JP;
Hitomi Furuta, Tokyo, JP;
Shigeki Sawamura, Tokyo, JP;
Assignee:
AGC Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 10/00 (2006.01); C03C 4/18 (2006.01); C03C 21/00 (2006.01); H01L 23/15 (2006.01);
U.S. Cl.
CPC ...
C03C 10/0027 (2013.01); C03C 4/18 (2013.01); C03C 21/002 (2013.01); H01L 23/15 (2013.01); C03C 2204/00 (2013.01);
Abstract
A glass sheet, containing, in mass % on an oxide basis: 45-70% of SiO, 1-15% of AlO, 10-25% of LiO, 0-10% of NaO, 0-5% of KO, and 0-15% of ZrO. KO/RO is 0.10 or less and ZrO/RO is 0.30 or more, where RO is a total content of LiO, NaO, and KO. The glass sheet has an average thermal expansion coefficient at 50° C.-350° C. of 90×10/° C.-140×10/° C. and a Young's modulus of 85 GPa or more.