发明授权
US07458088B2 Intermediate for optical recording medium and method of manufacturing the optical recording medium
有权
用于光学记录介质的中间体和制造光学记录介质的方法
- 专利标题： Intermediate for optical recording medium and method of manufacturing the optical recording medium
- 专利标题（中）： 用于光学记录介质的中间体和制造光学记录介质的方法
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申请号： US10518388申请日： 2003-07-02
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公开(公告)号： US07458088B2公开(公告)日： 2008-11-25
- 发明人: Junichi Ide , Mamoru Usami , Tomoki Ushida , Kenji Yamaga , Atsushi Koyama
- 申请人： Junichi Ide , Mamoru Usami , Tomoki Ushida , Kenji Yamaga , Atsushi Koyama
- 申请人地址： JP Tokyo
- 专利权人： TDK Corporation
- 当前专利权人： TDK Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Greenblum & Bernstein, P.L.C.
- 优先权： JP2002-196644 20020705
- 国际申请： PCT/JP03/08450 WO 20030702
- 国际公布： WO2004/006237 WO 20040115
- 主分类号： G11B7/24
- IPC分类号： G11B7/24
摘要：
An intermediate for an optical recording medium, according to the present invention, is an intermediate produced beforehand for manufacturing an optical recording medium that has a central mounting hole formed in a central portion thereof and one or more kinds of functional layers formed on a surface thereof, for enabling at least one of information recording and information reproduction. The intermediate has a provisional central hole, which is smaller in diameter than the central mounting hole, formed in a central portion thereof. This makes it possible to drop resin in the vicinity of the center of the intermediate without using a disk-shaped member, in performing spin coating on the intermediate, whereby it is possible to make the layer of applied resin substantially uniform in thickness.