发明申请
- 专利标题： Optical information recording medium
- 专利标题（中）： 光信息记录介质
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申请号： US11192770申请日： 2005-07-29
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公开(公告)号： US20060023620A1公开(公告)日： 2006-02-02
- 发明人: Hironobu Shimizu , Daisuke Morishita
- 申请人： Hironobu Shimizu , Daisuke Morishita
- 优先权： JP2004-224806 20040730
- 主分类号： G11B7/24
- IPC分类号： G11B7/24
摘要：
In an optical information recording medium, a first sub-information area, a second sub-information area, and the main information area are provided in order from the center of the optical information recording medium in an outer peripheral direction. A first groove is formed in the first boundary area between the first sub-information area and the second sub-information area and a second groove is formed in the second boundary area between the second sub-information area and the main information area.
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IPC分类:
