Invention Grant
- Patent Title: Recording medium, and recording and reproducing apparatus
- Patent Title (中): 记录介质,以及记录和再现装置
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Application No.: US12541648Application Date: 2009-08-14
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Publication No.: US08238215B2Publication Date: 2012-08-07
- Inventor: Morio Nakatani , Kenji Nagatomi , Yoshiyuki Matsumura , Seiichiro Takahashi
- Applicant: Morio Nakatani , Kenji Nagatomi , Yoshiyuki Matsumura , Seiichiro Takahashi
- Applicant Address: JP Osaka
- Assignee: Sanyo Electric Co., Ltd.
- Current Assignee: Sanyo Electric Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Ditthavong Mori & Steiner, P.C.
- Priority: JP2007-036894 20070216
- Main IPC: G11B7/20
- IPC: G11B7/20

Abstract:
A recording medium includes: at least one recording layer on which information is recorded by multi-photon absorption; and a servo layer disposed in a laminated direction with respect to the recording layer and having a track for guiding a beam spot of laser light having a first wavelength and a beam spot of laser light having a second wavelength along a scanning trajectory, wherein the servo layer and the at least one recording layer constitute a set of layers, and a plurality of sets of layers is formed in the laminated direction.
Public/Granted literature
- US20090303854A1 RECORDING MEDIUM, AND RECORDING AND REPRODUCING APPARATUS Public/Granted day:2009-12-10
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