Patent ID: 6524418
Filing Date: 2003-02-25
Classification: G11B,Y10S,Y10T

Abstract:
A method of production of a multilayer optical recording medium having a flexible film side through which a laser light is irradiated for reproducing information on said medium, said method comprising the steps of:forming a first optical recording layer on a substrate formed with a pattern of irregularities, forming a transfer substrate comprised of an acrylic resin formed with a pattern of irregularities on a surface thereof, forming a second optical recording layer on the pattern of irregularities of the transfer substrate, adhering a flexible film at the upper portion of the second optical recording layer by an adhesive layer, separating the second optical recording layer and the transfer substrate at their boundary to transfer the second optical recording layer to the flexible film, and bonding together the first optical recording layer and the second optical recording layer with them facing each other.