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:
Jan. 27, 2026
Filed:
Jan. 27, 2022
Agc Inc., Tokyo, JP;
Mikio Nagano, Tokyo, JP;
Seiji Inaba, Tokyo, JP;
Yasunari Saito, Tokyo, JP;
Kiyoshi Tamai, Tokyo, JP;
Kazutaka Ono, Tokyo, JP;
Yuha Kobayashi, Tokyo, JP;
AGC Inc., Tokyo, JP;
Abstract
Suppressing deflection and reducing weight are to be achieved. A supporting glass substrate has a ratio of a Young's modulus (GPa) to a density (g/cm) that is 37.0 (GPa·cm/g) or more and the ratio has a value larger than a ratio calculation value, the ratio calculation value being a ratio of a Young's modulus (GPa) calculated from a composition to a density (g/cm). The ratio calculation value is represented by the following expression: α=2·Σ{(V·G)/M·X}, where, in the expression, Vis a filling parameter of a metal oxide contained in the supporting glass substrate, Gis a dissociation energy of a metal oxide contained in the supporting glass substrate, Mis a molecular weight of a metal oxide contained in the supporting glass substrate, and Xis a molar ratio of a metal oxide contained in the supporting glass substrate.