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. 14, 2025
Filed:
Oct. 07, 2019
Applicant:
Nippon Electric Glass Co., Ltd., Shiga, JP;
Inventor:
Mayu Nishimiya, Shiga, JP;
Assignee:
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/087 (2006.01); C03C 3/091 (2006.01); C03C 3/11 (2006.01); H10K 71/00 (2023.01);
U.S. Cl.
CPC ...
C03C 3/087 (2013.01); C03C 3/091 (2013.01); C03C 3/11 (2013.01); H10K 71/00 (2023.02);
Abstract
The present invention provides an alkali-free glass sheet, which has a content of LiO+NaO+KO of from 0 mol % to 0.5 mol % in a glass composition, and has a Young's modulus of 78 GPa or more, a strain point of 680° C. or more, and a liquidus temperature of 1,450° C. or less.