Invention Grant
- Patent Title: Optical information recording medium
- Patent Title (中): 光信息记录介质
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Application No.: US13864746Application Date: 2013-04-17
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Publication No.: US08953427B2Publication Date: 2015-02-10
- Inventor: Hidehiro Mochizuki , Tatsuo Mikami
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2010-234590 20101019
- Main IPC: G11B7/244
- IPC: G11B7/244 ; B82Y10/00 ; G11B7/0045 ; G11B7/245 ; G11B7/246 ; G11B7/24038 ; G11B7/248 ; G11B7/2531

Abstract:
An optical information recording medium 10 comprises a plurality of recording layers 14 and intermediate layers 15 each provided between the recording layers 14. Each of the recording layers 14 includes 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 18) is formed between a recording layer 14 and an intermediate layer 15 that is adjacent to the recording layer 14 on one side of the recording layer 14 in a thickness direction of the recording layer 14, and a second interface (far-side interface 19) is formed between the recording layer 14 and an intermediate layer 15 that is adjacent to the recording layer 14 on the other side of the recording layer 14 in the thickness direction of the recording layer 14. 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 layer 15 to form a protrusion, whereby information is recorded in the optical information recording medium 10.
Public/Granted literature
- US20130229901A1 OPTICAL INFORMATION RECORDING MEDIUM Public/Granted day:2013-09-05
Information query
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