Invention Grant
- Patent Title: Optical disk and optical disk device
- Patent Title (中): 光盘和光盘设备
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Application No.: US11187859Application Date: 2005-07-25
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Publication No.: US07809259B2Publication Date: 2010-10-05
- Inventor: Kazumi Ohtsubo , Hiroaki Sakai , Shogo Horinouchi , Kazuhisa Ide
- Applicant: Kazumi Ohtsubo , Hiroaki Sakai , Shogo Horinouchi , Kazuhisa Ide
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Dickinson Wright PLLC
- Priority: JP2004-216781 20040726; JP2004-221351 20040729; JP2004-239272 20040819
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
A first recording layer for recording information of an optical disk and a second recording layer of the optical disk on which a visible image can be recorded are disposed at an interval of 0.5 mm or more. Thus, even when a high power laser is used on one of the layers, data on the other layer will not be destroyed.
Public/Granted literature
- US20060018243A1 Optical disk and optical disk device Public/Granted day:2006-01-26
Information query
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