Invention Grant
- Patent Title: Optical information recording medium and method for manufacturing same
- Patent Title (中): 光学信息记录介质及其制造方法
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Application No.: US14131892Application Date: 2012-08-10
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Publication No.: US08815364B2Publication Date: 2014-08-26
- Inventor: Hideki Kitaura
- Applicant: Hideki Kitaura
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2011-187208 20110830
- International Application: PCT/JP2012/005118 WO 20120810
- International Announcement: WO2013/031107 WO 20130307
- Main IPC: G11B7/24
- IPC: G11B7/24

Abstract:
An optical information recording medium includes a recording film, which contains germanium, bismuth, and at least 50 at % tellurium, and has a first recording film component formed in the planar direction and having a bismuth content of at least 15 at %, a second recording film component formed in the planar direction on the side to be irradiated with a light beam and having a bismuth content that is at least 10 at % lower than that of the first recording film component, and an intermediate recording film component provided between the first and second recording film component to moderate the change in the bismuth content in the film thickness direction between the first and second recording film component, and having a bismuth content greater than the bismuth content of the second recording film component and less than the bismuth content of the first recording film component.
Public/Granted literature
- US20140127468A1 OPTICAL INFORMATION RECORDING MEDIUM AND METHOD FOR MANUFACTURING SAME Public/Granted day:2014-05-08
Information query
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