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:
Jun. 16, 2026
Filed:
Dec. 15, 2022
Chongqing Aureavia Hi-tech Glass Co., Ltd., Chongqing, CN;
Chongqing Aureavia Hi-tech Glass Co., Ltd., Chongqing, CN;
Abstract
Disclosed is a transparent strengthened glass ceramic having high stress depth. The crystal phase of the strengthened glass ceramic comprises spinel crystals and zirconium oxide crystals, and does not contain Li-containing crystals; the strengthened glass ceramic has a compressive stress region extending from the surface thereof to a compression depth, the depth of a compressive stress layer, DOL_0, of the strengthened glass ceramic is greater than or equal to 14% the thickness of the strengthened glass ceramic, and the tensile stress line density of the strengthened glass ceramic is greater than or equal to 25,000 MPa/mm. More Li ions and Na ions are introduced into a spinel glass ceramic component, so that a prepared transparent spinel glass ceramic can be chemically strengthened to obtain a transparent strengthened glass ceramic having high CS, DOL_0, CT_AV and CT_LD, and the strengthened glass ceramic shows excellent anti-dropping performance.