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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.:

US 9711176 B1

PDFFull Text
Date of Patent:
Jul. 18, 2017

Filed:

Jul. 10, 2015

Multilayer optical information recording disk and method for manufacturing same

Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Toshiyuki Kitahara, Odawara, JP;

Tatsuo Mikami, Odawara, JP;

Atsushi Tatsugawa, Odawara, JP;

Assignee:

FUJIFILM Corporation, Minato-Ku, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Elizabeth Mulvaney

Int. Cl.
CPC ...
G11B 7/24 (2013.01); G11B 7/256 (2006.01); B32B 3/30 (2006.01); B32B 7/02 (2006.01); B32B 7/12 (2006.01); B32B 37/26 (2006.01); G11B 7/24038 (2013.01); G11B 7/245 (2006.01); G11B 7/246 (2013.01); G11B 7/24067 (2013.01); G11B 7/24073 (2013.01); G11B 7/26 (2006.01); B32B 38/06 (2006.01); B32B 7/06 (2006.01); B32B 27/08 (2006.01); B32B 27/20 (2006.01); B32B 27/30 (2006.01); B32B 37/24 (2006.01); B32B 37/12 (2006.01); B32B 38/00 (2006.01); B32B 38/10 (2006.01); B32B 37/02 (2006.01); B32B 38/18 (2006.01);
U.S. Cl.
CPC ...
G11B 7/256 (2013.01); B32B 3/30 (2013.01); B32B 7/02 (2013.01); B32B 7/06 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 37/26 (2013.01); B32B 38/06 (2013.01); G11B 7/245 (2013.01); G11B 7/246 (2013.01); G11B 7/24038 (2013.01); G11B 7/24067 (2013.01); G11B 7/24073 (2013.01); G11B 7/263 (2013.01); B32B 37/02 (2013.01); B32B 37/12 (2013.01); B32B 37/1284 (2013.01); B32B 37/24 (2013.01); B32B 38/0004 (2013.01); B32B 38/10 (2013.01); B32B 38/1841 (2013.01); B32B 2037/243 (2013.01); B32B 2037/268 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/418 (2013.01); B32B 2307/748 (2013.01); B32B 2429/02 (2013.01); Y10T 156/1039 (2015.01);
Abstract

A multilayer optical information recording disk comprising a plurality of recording layers and intermediate layers provided between the plurality of recording layers, and a method for manufacturing the same are provided. At least one of two intermediate layers disposed adjacent to respective sides of one recording layer is made of adhesive. Each of the recording layers includes a polymer binder and a dye dispersed in the polymer binder or includes a polymer to which a dye is bonded. Each recording layer is configured such that the dye absorbs a recording beam and generates heat which deforms the recording layer, causing an interface between the recording layer and the intermediate layer made of adhesive to have a protrusive shape protruding into the intermediate layer, thereby recording information thereat. The interface between the recording layer and the recording layer made of adhesive has a groove for track-following servo control.

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