Invention Grant
- Patent Title: Optical information recording medium, optical information recording/reproducing system, and optical information recording/reproducing apparatus
- Patent Title (中): 光信息记录介质，光信息记录/再现系统和光信息记录/再现装置
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Application No.: US11819745Application Date: 2007-06-28
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Publication No.: US07881178B2Publication Date: 2011-02-01
- Inventor: Shigeru Oouchida
- Applicant: Shigeru Oouchida
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Dickstein Shapiro LLP
- Priority: JP2006-190560 20060711
- Main IPC: G11B7/24
- IPC: G11B7/24
Abstract:
A disclosed optical information recording medium includes a guide track layer having grooves and ridges; and recording layers composed of an optical recording material and disposed above and below the guide track layer. The guide track layer is used to determine track positions on the recording layers.
Public/Granted literature
Information query
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