Invention Grant
- Patent Title: Optical recording medium having a plurality of recording layers capable of suppressing off-track
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Application No.: US15115791Application Date: 2015-01-28
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Publication No.: US09911451B2Publication Date: 2018-03-06
- Inventor: Yo Ota , Kensaku Takahashi , Manami Miyawaki
- Applicant: SONY CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SONY CORPORATION
- Current Assignee: SONY CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: CHIP Law Gorup
- Priority: JP2014-026304 20140214
- International Application: PCT/JP2015/000366 WO 20150128
- International Announcement: WO2015/122130 WO 20150802
- Main IPC: G11B7/24
- IPC: G11B7/24 ; G11B7/24062 ; G11B7/24035 ; G11B7/243 ; G11B7/24076 ; G11B7/007 ; G11B7/26 ; G11B7/24073 ; G11B7/2433 ; G11B7/24038 ; G11B7/085
Abstract:
An optical recording medium includes a plurality of information signal layers on which information signals are to be optically recorded. Among the plurality of information signal layers, the information signal layer closest to the light-receiving surface has a reflectance of more than 4%.
Public/Granted literature
- US20170011767A1 OPTICAL RECORDING MEDIUM Public/Granted day:2017-01-12
Information query
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