Invention Grant
- Patent Title: Information-recording medium and optical information-recording/reproducing device
- Patent Title (中): 信息记录介质和光信息记录/再现装置
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Application No.: US11913013Application Date: 2006-04-26
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Publication No.: US07848205B2Publication Date: 2010-12-07
- Inventor: Teruhiro Shiono , Tatsuo Itoh
- Applicant: Teruhiro Shiono , Tatsuo Itoh
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2005-129265 20050427
- International Application: PCT/JP2006/308781 WO 20060426
- International Announcement: WO2006/118164 WO 20061109
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
An information-recording medium having a substrate and a recording part formed on the substrate allowing three-dimensional formation of recording pits, the recording part, comprising multiple recording layers, in which the recording pits are formed with a converged recording light at a wavelength of λ2 and reproduced with a converged reproducing light with a wavelength λ1 shorter than the wavelength λ2, and intermediate layers alternately laminated between the recording layers, wherein the reflectance at the recording light wavelength of λ2 in the unrecorded region is smaller than the reflectance at the reproducing light wavelength of λ1 in the unrecorded regions of the recording layers.
Public/Granted literature
- US20090067313A1 INFORMATION-RECORDING MEDIUM AND OPTICAL INFORMATION-RECORDING/REPRODUCING DEVICE Public/Granted day:2009-03-12
Information query
IPC分类: