Invention Grant
- Patent Title: Optical information recording medium, recording/reproducing method thereof and recording/reproducing apparatus
- Patent Title (中): 光信息记录介质,其记录/再现方法和记录/再现装置
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Application No.: US12095894Application Date: 2006-11-27
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Publication No.: US08110273B2Publication Date: 2012-02-07
- Inventor: Hideki Kitaura , Yukako Doi , Noboru Yamada
- Applicant: Hideki Kitaura , Yukako Doi , Noboru Yamada
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2005-349022 20051202; JP2005-372889 20051226
- International Application: PCT/JP2006/323582 WO 20061127
- International Announcement: WO2007/063800 WO 20070607
- Main IPC: B32B3/02
- IPC: B32B3/02

Abstract:
An optical information recording medium, recording/reproducing method thereof, and recording/reproducing apparatus with superior signal quality for high-density recording that has high storage reliability is provided. The optical information recording medium has at least one information layer having a recording layer and a dielectric layer in order on a transparent substrate. The dielectric layer is comprised of greater than or equal to 50 molecule percent and less than or equal to 98 molecule percent of Zn—O, and greater than or equal to 2 molecule percent to less than or equal to 50 molecule percent of one or more compounds selected from the group consisting of Y—O, Ce—O, Nb—O, Ta—O, Cr—O and Mo—O.
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