发明授权
- 专利标题: Method of manufacturing optical recording medium
- 专利标题(中): 制造光记录介质的方法
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申请号: US08936578申请日: 1997-09-24
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公开(公告)号: US06210609B1公开(公告)日: 2001-04-03
- 发明人: Minoru Takeda , Toshiyuki Kashiwagi , Nobuyuki Arakawa
- 申请人: Minoru Takeda , Toshiyuki Kashiwagi , Nobuyuki Arakawa
- 优先权: JP8-256644 19960927
- 主分类号: B29D1100
- IPC分类号: B29D1100
摘要:
In the method of manufacturing an optical recording medium according to the present invention, when an optical recording medium having at least first and second minute concave and convex surfaces formed thereon is manufactured, the first and second minute concave and convex surfaces are simultaneously molded on both surfaces of a substrate of the optical recording medium. Therefore, it is possible to manufacture a multilayer optical recording medium having an excellent symmetrical structure with respect to a vertical cross section direction of the substrate, i.e., in the thickness direction of the optical recording medium. Moreover, it is possible to effectively suppress the deformation thereof resulting from curing or shrinkage of an light curing resin or the like, absorption or removal of vapor in the air into or from a substrate, a transparent intermediate film or the like, and so on.
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