Invention Grant
- Patent Title: Optical information recording medium
- Patent Title (中): 光信息记录介质
-
Application No.: US14127243Application Date: 2013-04-18
-
Publication No.: US09082430B2Publication Date: 2015-07-14
- Inventor: Atsushi Takeuchi , Katsuya Owada
- Applicant: Sony Corporation
- Applicant Address: JP Tokyo
- Assignee: SONY CORPORATION
- Current Assignee: SONY CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: K&L Gates LLP
- Priority: JP2012-101660 20120426; JP2013-042746 20130305
- International Application: PCT/JP2013/062146 WO 20130418
- International Announcement: WO2013/161916 WO 20131031
- Main IPC: G11B7/24
- IPC: G11B7/24 ; G11B7/24062 ; G11B7/24076 ; G11B7/248 ; G11B7/1374 ; G11B7/24027 ; G11B7/24035 ; G11B7/2405
Abstract:
An optical information recording medium includes a substrate that has a recessed portion on a surface thereof, a recording layer, and a reflective layer. By combination of ranges of an optical density of the recording layer and a depth of the recessed portion of the substrate, degradation of reflectance is suppressed.
Public/Granted literature
- US20150036473A1 OPTICAL INFORMATION RECORDING MEDIUM Public/Granted day:2015-02-05
Information query
IPC分类:
