The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2014
Filed:
Sep. 09, 2010
Applicants:
Minoru Kikuchi, Miyagi, JP;
Hiroyuki Kawasaki, Miyagi, JP;
Takashi Ohgi, Miyagi, JP;
Yoshiaki Nakata, Tochigi, JP;
Inventors:
Minoru Kikuchi, Miyagi, JP;
Hiroyuki Kawasaki, Miyagi, JP;
Takashi Ohgi, Miyagi, JP;
Yoshiaki Nakata, Tochigi, JP;
Assignees:
Sony Corporation, Tokyo, JP;
Dexerials Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2013.01);
U.S. Cl.
CPC ...
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.