发明授权
US07035190B2 Method of recording/reproducing information on a recording medium with plural phase change recording layers
有权
在具有多个相变记录层的记录介质上记录/重放信息的方法
- 专利标题： Method of recording/reproducing information on a recording medium with plural phase change recording layers
- 专利标题（中）： 在具有多个相变记录层的记录介质上记录/重放信息的方法
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申请号： US10637819申请日： 2003-08-08
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公开(公告)号： US07035190B2公开(公告)日： 2006-04-25
- 发明人: Takashi Nishihara , Rie Kojima , Noboru Yamada
- 申请人： Takashi Nishihara , Rie Kojima , Noboru Yamada
- 申请人地址： JP Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： Hamre, Schumann, Mueller & Larson, P.C.
- 优先权： JP2000-263414 20000831
- 主分类号： G11B7/20
- IPC分类号： G11B7/20
摘要：
An information recording medium includes a first information layer and a second information layer. The first information layer includes a first recording layer in which a reversible phase change is caused between a crystalline phase and an amorphous phase by irradiation of a laser beam or application of current. The second information layer includes a second recording layer in which a reversible phase change is caused between a crystalline phase and an amorphous phase by the irradiation of the laser beam or the application of the current. The first recording layer is made of a first material, the second recording layer is made of a second material, and the first material is different from the second material.
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