MOLD FOR FORMING GLASS SUBSTRATE, METHOD OF MANUFACTURING GLASS SUBSTRATE, METHOD OF MANUFACTURING GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, METHOD OF MANUFACTURING INFORMATION RECORDING MEDIUM, GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, AND INFORMATION RECORDING MEDIUM

摘要

<P>PROBLEM TO BE SOLVED: To provide a mold for forming a glass substrate capable of preventing the glass substrate from being cracked when the glass substrate is released from the metallic mold in a method of manufacturing the glass substrate by press-forming a molten glass, a method of manufacturing a glass substrate using the metallic mold, a method of manufacturing a glass substrate for an information recording medium using the glass substrate manufactured by the manufacturing method, a method of manufacturing an information recording medium, a glass substrate for an information recording medium, and an information recording medium. Ž<P>SOLUTION: In the mold for forming a glass substrate used for manufacturing a glass substrate by press-forming a molten glass using forming surfaces of an upper mold and a lower mold, at least one of the forming surfaces of the upper mold and the lower mold has a pattern comprising grooves. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž