Invention Grant
- Patent Title: Information recording medium and recording method using the same
- Patent Title (中): 信息记录介质及使用其的记录方法
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Application No.: US213730Application Date: 1994-03-16
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Publication No.: US5431978APublication Date: 1995-07-11
- Inventor: Naomasa Nakamura , Naoki Morishita
- Applicant: Naomasa Nakamura , Naoki Morishita
- Applicant Address: JPX Kanagawa
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JPX Kanagawa
- Priority: JPX5-221905 19930907
- Main IPC: B41M5/26
- IPC: B41M5/26 ; G11B7/24 ; G11B7/241 ; G11B7/243 ; G11B7/254 ; G11B7/257 ; B32B3/02
Abstract:
According to this invention, there is provided an information recording medium including a substrate, a metal layer formed on the substrate, and a recording layer formed on the metal layer and being formed a recorded portion and a non-recorded portion by changing optical characteristics by radiating a recording light beam, wherein the recording layer contains GeSbTe, a reflectance of the recorded portion of the recording layer is higher than that of the non-recorded portion, and a reflectance of the non-recorded portion is not less than 10%. Focusing and tracking operations can be stably performed.
Public/Granted literature
- US5958500A Sugar product derived from dates Public/Granted day:1999-09-28
Information query
