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:
Feb. 10, 2015
Filed:
Apr. 17, 2013
Fujifilm Corporation, Minato-ku, Tokyo, JP;
Hidehiro Mochizuki, Odawara, JP;
Tatsuo Mikami, Odawara, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
An optical information recording mediumcomprises a plurality of recording layersand intermediate layerseach provided between the recording layers. Each of the recording layersincludes a polymer binder and dye dispersed in the polymer binder, and a thickness of each recording layer is equal to or greater than 50 nm. A first interface (near-side interface) is formed between a recording layerand an intermediate layerthat is adjacent to the recording layeron one side of the recording layerin a thickness direction of the recording layer, and a second interface (far-side interface) is formed between the recording layerand an intermediate layerthat is adjacent to the recording layeron the other side of the recording layerin the thickness direction of the recording layer. When the dye is irradiated with a recording beam and generates heat by absorption of the recording beam, the polymer binder undergoes a change in shape by the generated heat, so that at least one of the first interface and the second interface undergoes a change in shape and sticks out toward the intermediate layerto form a protrusion, whereby information is recorded in the optical information recording medium