Title:
METHOD FOR MANUFACTURING OPTICAL STORAGE MEDIA AND APPARATUS FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2011/126080
Kind Code:
A1
Abstract:
Provided are a method for manufacturing optical storage media which exhibits improved manufacturing efficiency and an apparatus for manufacturing the optical storage media. In the provided method for manufacturing an optical storage medium, which has a plurality of recording layers on a substrate and an indented intermediate layer between the plurality of recording layers, the intermediate layer formation step includes at least: a first step in which a radiation-curable resin material is applied between a radiation-transparent stamper and a substrate having a recording layer, then superimposing the radiation-transparent stamper on the substrate having the recording layer; a second step in which the radiation-transparent stamper and the substrate having the recording layer are twisted while being pressed towards each other, stretching the radiation-curable resin material; a third step in which only the vicinity of a central hole in the substrate is irradiated with radiation, curing the radiation-curable resin material; and a fourth step in which the substrate having the recording layer and the radiation-transparent stamper are rotated and the radiation-curable resin material is simultaneously cured, bonding the radiation-transparent stamper and the substrate having the recording layer to each other.
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Inventors:
NOJIRI, Seiki (1-23, Shiba 4-chome, Minato-k, Tokyo 15, 〒1088415, JP)
Application Number:
JP2011/058830
Publication Date:
October 13, 2011
Filing Date:
April 07, 2011
Export Citation:
Assignee:
MITSUBISHI KAGAKU MEDIA CO., LTD. (1-23, Shiba 4-chome Minato-k, Tokyo 15, 〒1088415, JP)
三菱化学メディア株式会社 (〒15 東京都港区芝四丁目１番２３号 Tokyo, 〒1088415, JP)
三菱化学メディア株式会社 (〒15 東京都港区芝四丁目１番２３号 Tokyo, 〒1088415, JP)
International Classes:
G11B7/26; G11B7/24
Attorney, Agent or Firm:
SENMYO, Kenji et al. (4th Floor, SIA Kanda Square 17, Kanda-konyacho, Chiyoda-k, Tokyo 35, 〒1010035, JP)
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Claims: