Method for manufacturing reinforced glass plate, and method for manufacturing glass plate for reinforcement

Abstract

Provided is a method of manufacturing a tempered glass sheet that has been tempered by an ion exchange process, the method including: a film forming step of covering a surface of an original glass sheet with an ion permeation suppressing film configured to suppress permeation of an alkali metal ion, to thereby provide a glass sheet with a film; a processing step of subjecting, after the film forming step, the glass sheet with a film to at least any one of cutting processing, end-surface processing, and hole-opening processing, to thereby provide a glass sheet to be tempered including an exposed portion free from being covered with the ion permeation suppressing film; and a tempering step of chemically tempering, after the processing step, the glass sheet to be tempered by the ion exchange process to provide a tempered glass sheet.

Dependencies are inferred from the claim text.