Invention Grant
- Patent Title: Optical recording medium having a plurality of recording layers
- Patent Title (中): 具有多个记录层的光记录介质
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Application No.: US11511377Application Date: 2006-08-29
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Publication No.: US07668070B2Publication Date: 2010-02-23
- Inventor: Shuichi Ohkubo
- Applicant: Shuichi Ohkubo
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2005-248536 20050830
- Main IPC: G11B7/24
- IPC: G11B7/24
Abstract:
A phase-change disk has first and second disk sections each including a recording layer and a reflective layer. The first disk section includes a transmission-factor control film including first through third dielectric layers having refractive indexes of n1, n2 and n3, where n1>n2
Public/Granted literature
- US20070047430A1 Optical recording medium having a plurality of recording layers Public/Granted day:2007-03-01
Information query
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