发明名称 Method of manufacturing disk substrate, and method and device for manufacturing optical disk
摘要 A method for producing a disk-shaped substrate 10 used for producing an optical disk includes: (a) forming a protective layer 12a that is larger in area than the disk-shaped substrate 10 on a surface of a transparent plate 11a; and (b) cutting a portion of the plate 11a with the protective layer 12a formed thereon other than an outer edge portion of the protective layer 12a to form a disk shape. According to this producing method, a thin substrate can be prevented from being damaged by forming a protective layer. Furthermore, according to this producing method, a protective layer with a uniform thickness can be formed.
申请公布号 US2005031777(A1) 申请公布日期 2005.02.10
申请号 US20040934227 申请日期 2004.09.03
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 HAYASHI KAZUHIRO;HISADA KAZUYA;OHNO EIJI
分类号 B05D3/12;B05D5/06;G11B7/24;G11B7/24038;G11B7/26;G11B11/105;(IPC1-7):B05D3/12 主分类号 B05D3/12
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