| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide glass substrate blanks where cracks do not occur even if the thickness of the glass substrate blanks becomes thin when releasing the glass substrate blanks from a mold and which has high flatness in a method for producing the glass substrate blanks by press-molding molten glass, the method for producing the glass substrate blanks, a method for producing a glass substrate for information-recording media using the glass substrate blanks produced by the method, a method for producing the information-recording media, the glass substrate for the information-recording media and the information-recording media. <P>SOLUTION: Provided are glass substrate blanks, wherein at least one side surface thereof has a pattern comprising a projected part. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
