Back to results
US 8,709,569 B2Granted
Optical recording medium, and method for producing optical recording medium
AssigneesSony Corporation, Dexerials Corporation
InventorsMinoru Kikuchi, Hiroyuki Kawasaki, Takashi Ohgi, Yoshiaki Nakata
Life of this patent
Estimating the term…
Abstract
An optical recording medium includes: a substrate; an information recording layer formed on the substrate for recording and reproducing an information signal by irradiation with light; and a light transmission layer formed on the information recording layer and transmitting the light, the storage elastic modulus of the light transmission layer at −5° C. being within a range of 1500 MPa or less.
Claims8
An optical recording medium comprising:
- a substrate;
- an information recording layer formed on the substrate for recording and reproducing an information signal by irradiation with light;
- and
- a light transmission layer formed on the information recording layer and transmitting the light,
- the storage elastic modulus of the light transmission layer at −5° C. being within a range of 1500 MPa or less.
2 more elements
A method for producing an optical recording medium, comprising the steps of:
- forming an information recording layer on a substrate for recording and reproducing an information signal by irradiation with light;
- and
- applying a UV-curable resin composition onto the information recording layer and then curing the UV-curable resin composition to form a light transmission layer on the information recording layer,
- the storage elastic modulus of the light transmission layer at −5° C. being within a range of 1500 MPa or less.
1 more element
Dependencies are inferred from the claim text.