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. 04, 2022
Filed:
Jun. 11, 2020
Agc Inc., Chiyoda-ku, JP;
Shuichi Akada, Tokyo, JP;
Yuya Shimada, Tokyo, JP;
AGC Inc., Chiyoda-ku, JP;
Abstract
A glass sheet contains, as represented by mass percentage based on oxides, SiO: 65-75%, AlO: 0-20%, MgO: 0-5%, CaO: 2-20%, NaO: 5-20%, KO: 0-10%, total iron in terms of FeO(t-FeO): 0.2-1.0%, TiO: 0.65-1.5%, and CeO: 0.1-2.0%. A ratio of the content of MgO to RO is 0.20 or less, where RO is a total amount of MgO, CaO, SrO and BaO. Fe-redox is from 30 to 57%. The glass sheet has a visible light transmittance Tv_A of 65% or more, a solar transmittance Te of 50% or less, and a dominant wavelength Dw of transmitted light of from 508 to 580 nm, in terms of a 3.9-mm thickness of the glass sheet. A value of A=([t-FeO]×Fe-redox)/[TiO] is from 20 to 40, where [t-FeO] is the content of t-FeOand [TiO] is the content of TiO.