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:
Jan. 24, 2017
Filed:
Mar. 24, 2015
Applicant:
Sony Corporation, Tokyo, JP;
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2013.01); G11B 7/24024 (2013.01); B32B 3/26 (2006.01); B32B 7/04 (2006.01); G11B 7/24047 (2013.01); G11B 7/26 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/16 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); G11B 7/24027 (2013.01); G11B 7/24038 (2013.01); G11B 7/256 (2006.01);
U.S. Cl.
CPC ...
G11B 7/24024 (2013.01); B32B 3/266 (2013.01); B32B 7/04 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/16 (2013.01); B32B 27/32 (2013.01); B32B 27/365 (2013.01); G11B 7/24047 (2013.01); G11B 7/26 (2013.01); B32B 2307/204 (2013.01); B32B 2307/40 (2013.01); B32B 2307/7242 (2013.01); B32B 2429/02 (2013.01); G11B 7/24027 (2013.01); G11B 7/24038 (2013.01); G11B 7/256 (2013.01); G11B 7/266 (2013.01); G11B 2007/240004 (2013.01);
Abstract
Provided is an optical recording medium including: two discs, each of which includes a substrate and a plurality of recording layers; and an attachment layer which is provided between the two discs and includes ultraviolet curable resin, wherein thickness of each of the substrates in the two discs is equal to or greater than 0.3 mm and equal to or less than 0.545 mm, wherein transmittance of the two discs is equal to or less than 20%, and wherein inversion rates on both surface sides of the attachment layer are equal or substantially equal to each other, and are equal to or greater than 70%.