发明授权
- 专利标题： Magneto-optic memory medium
- 专利标题（中）： 磁光存储介质
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申请号： US13987申请日： 1993-02-05
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公开(公告)号： US6001467A公开(公告)日： 1999-12-14
- 发明人: Kenji Ohta , Akira Takahashi , Yoshiteru Murakami , Junichiro Nakayama , Tomoyuki Miyake
- 申请人： Kenji Ohta , Akira Takahashi , Yoshiteru Murakami , Junichiro Nakayama , Tomoyuki Miyake
- 申请人地址： JPX Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 优先权： JPX62-300646 19871126
- 主分类号： G11B11/105
- IPC分类号： G11B11/105 ; G11B5/66
摘要：
A magneto-optic memory medium comprising a dielectric film, a magneto-optic memory film, a dielectric film and a reflective film superposed in layers on a light trnasmitting substrate, the magneto-optic memory film being a rare earth-transition metal alloy film having the composition formula of:(Gd.sub.x Tb.sub.1-x).sub.y Fe.sub.1-ywherein x is 0.58 to 0.62, and y is 0.27 to 0.33, which is useful as a magneto-optic disc or magneto-optic card.
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