摘要 |
PROBLEM TO BE SOLVED: To provide glass molded bodies which can satisfactorily adsorb even in a high temperature state and easily separate even when they are stacked; and to provide methods for efficiently manufacturing glass substrates used for information recording media and the information recording media, by using the glass molded bodies. SOLUTION: Each glass molded body is manufactured by press-molding molten glass with a mold and has front and rear molding transfer surfaces, wherein, at least one of the molding transfer surfaces has a smooth region where the surface roughness (Ra) is 0.01-0.1μm and a coarse region where the surface roughness (Ra) is 0.15-5μm. COPYRIGHT: (C)2008,JPO&INPIT
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