Invention Grant
US08530023B2 Optical information recording medium and sputtering target for forming reflective film for optical information recording medium
失效
光学信息记录介质和用于形成用于光学信息记录介质的反射膜的溅射靶
- Patent Title: Optical information recording medium and sputtering target for forming reflective film for optical information recording medium
- Patent Title (中): 光学信息记录介质和用于形成用于光学信息记录介质的反射膜的溅射靶
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Application No.: US13257767Application Date: 2010-04-14
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Publication No.: US08530023B2Publication Date: 2013-09-10
- Inventor: Yoko Shida , Yuuki Tauchi
- Applicant: Yoko Shida , Yuuki Tauchi
- Applicant Address: JP Kobe-shi
- Assignee: Kobe Steel, Ltd.
- Current Assignee: Kobe Steel, Ltd.
- Current Assignee Address: JP Kobe-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2009-098283 20090414; JP2009-098284 20090414
- International Application: PCT/JP2010/056660 WO 20100414
- International Announcement: WO2010/119888 WO 20101021
- Main IPC: G11B7/24
- IPC: G11B7/24
Abstract:
Disclosed is a read-only optical information recording medium which comprises a reflective film having a reflectance suitable for use as a reflective film for an optical information recording medium (e.g., BD-ROM) and having excellent reproduction stability, and which utilizes a blue laser beam. Specifically disclosed is a read-only optical information recording medium comprising a reflective film, wherein the reflective film comprises an Al-based alloy containing at least one element selected from Si and Ge in an amount of 5 to 40 at. %.
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