Patent ID: 7318233
Filing Date: 2008-01-08
Classification: B29C,B29D,B29L,G11B

Abstract:
1. An optical disk, comprising: a recording layer which is provided on a substrate and in which information is recorded; a bonding layer which is made of an ultraviolet cured resin bonding at least the recording layer on the substrate; a transparent sheet layer which is provided to be bonded on the bonding layer; the diameter of the transparent sheet is equal to the diameter of the substrate; an overcoating layer which is formed on the transparent sheet layer and is made of the ultraviolet cured resin; and a mixed layer which is continuously formed in the overcoating layer in such a manner that the ultraviolet cured resin of the bonding layer and the overcoating layer are mixed; and the mixed layer covered every inner sides of the substrate, the bonding layer and the transparent sheet layer.