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Patent Searching and Data


Title:
PRODUCTION OF MULTILAYERED OPTICAL RECORDING MEDIUM
Document Type and Number:
Japanese Patent JPH09115192
Kind Code:
A
Abstract:

To make it possible to effectively lessen the deformation of a substrate and to obtain an optical recording medium having excellent optical characteristics even in the formation of a multilayered optical recording medium having a thick photosetting resin layer between information recording layers.

A photosetting resin film 30 is superposed on the surface on the side having the first information recording layer of the substrate 1 having the first information recording layer and is press-bonded by a roller under heating to laminate the film thereon, in the production of the multilayered optical recording medium having at least the laminated first and second information recording layers. At this time, the substrate 1 is forcibly curved in the direction of compensating (correcting) the deformation generated in the substrate, i.e., so as to obtain the counter balance with the deformation in the stage of exposing and curing the photosetting resin film 30 and thereafter, the film is subjected to an exposure treatment.


Inventors:
YAMAZAKI TAKESHI
FURUKI MOTOHIRO
TAKEDA MINORU
Application Number:
JP26725195A
Publication Date:
May 02, 1997
Filing Date:
October 16, 1995
Export Citation:
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Assignee:
SONY CORP
International Classes:
G11B7/26; G11B7/24; (IPC1-7): G11B7/26
Attorney, Agent or Firm:
Hidekuma Matsukuma