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. 20, 2019
Applicant:
Gc Corporation, Sunto-gun, JP;
Inventor:
Katsuhito Kato, Tokyo, JP;
Assignee:
GC CORPORATION, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C 13/00 (2006.01); A61K 6/833 (2020.01); C03C 3/076 (2006.01); C03C 4/00 (2006.01); C04B 35/01 (2006.01);
U.S. Cl.
CPC ...
A61C 13/0022 (2013.01); A61K 6/833 (2020.01); C03C 3/076 (2013.01); C03C 4/0021 (2013.01); C04B 35/01 (2013.01);
Abstract
Included is a step of exposing a glass blank at a temperature lower than the temperature at which crystals of lithium metasilicate are generated, to an atmosphere at a temperature equal to or higher than the temperature at which crystals of lithium disilicate are generated and lower than the melting point of the crystals of lithium disilicate, to heat the glass blank so that the main crystalline phase of the glass blank is of lithium disilicate.