Patent Number: 7,611,639

Title: Glass substrate for information recording medium and method for manufacturing same

Abstract: A method for manufacturing a glass substrate having projections of the same height. The method includes forming a surface layer having a decreased chemical resistance on a glass plate, forming a texture including a plurality of projections having upper portions included in the surface layer, and selectively removing the surface layer.

Inventors: Saito; Yasuhiro (Osaka, JP), Hashimoto; Toshiaki (Osaka, JP), Kudoh; Yuriko (Osaka, JP)

Assignee: Hoya Corporation

International Classification: C03C 15/00 (20060101); G11B 5/84 (20060101); G11B 7/26 (20060101)

Expiration Date: 1/03/02017