| 摘要 |
There are provided a die for forming a glass substrate which does not generate cracks when the glass substrate is released from the die, in a method of manufacturing a glass substrate by forming molten glass with a pressing operation, a method of manufacturing a glass substrate using the die, a method of manufacturing a glass substrate for an information recording medium using a glass substrate manufactured by the method, a method of manufacturing an information recording medium, a glass substrate for an information recording medium, and an information recording medium. In the die for forming a glass substrate used for pressing molten glass to manufacture a glass substrate for an information recording medium, a lower die includes a die surface on which a plurality of grooves or depressions are almost uniformly formed.
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