2024年11月1日发(作者：翠海桃)
专利内容由知识产权出版社提供
专利名称：Magneto-optical recording medium
发明人：Hirokane, Junji,Nakayama,
Junichiro,Nakajima, Junsaku,Takahashi, Akira
申请号：EP97106555.2
申请日：19970421
公开号：EP0803870B1
公开日：20100317
摘要：An magneto-optical recording medium includes: a transparent dielectric layer; a
reproduction layer that is in an in-plane magnetization state at room temperature and
changes into a perpendicular magnetization state with a rise in temperature; a non-
magnetic intermediate layer; a recording layer made of a perpendicularly magnetized
film; and a protection layer, the layers being formed one after another in this order. The
recording layer is made of a rare-earth and transition metal alloy, and the rare earth
metal is composed of more than two kinds of rare-earth-metal elements containing Gd.
The information stored in a magnetic recording domain is masked with respect to a part
that is in an in-plane magnetization state. Consequently, recording can be performed with
a less powerful laser beam, and each recording bit can be reproduced independently to
produce high quality signals even if the converged light beam covers a neighboring
recording bit within its radius.
申请人：SHARP KK
地址：JP
国籍：JP
代理机构：Müller, Frithjof E.
更多信息请下载全文后查看
2024年11月1日发(作者：翠海桃)
专利内容由知识产权出版社提供
专利名称：Magneto-optical recording medium
发明人：Hirokane, Junji,Nakayama,
Junichiro,Nakajima, Junsaku,Takahashi, Akira
申请号：EP97106555.2
申请日：19970421
公开号：EP0803870B1
公开日：20100317
摘要：An magneto-optical recording medium includes: a transparent dielectric layer; a
reproduction layer that is in an in-plane magnetization state at room temperature and
changes into a perpendicular magnetization state with a rise in temperature; a non-
magnetic intermediate layer; a recording layer made of a perpendicularly magnetized
film; and a protection layer, the layers being formed one after another in this order. The
recording layer is made of a rare-earth and transition metal alloy, and the rare earth
metal is composed of more than two kinds of rare-earth-metal elements containing Gd.
The information stored in a magnetic recording domain is masked with respect to a part
that is in an in-plane magnetization state. Consequently, recording can be performed with
a less powerful laser beam, and each recording bit can be reproduced independently to
produce high quality signals even if the converged light beam covers a neighboring
recording bit within its radius.
申请人：SHARP KK
地址：JP
国籍：JP
代理机构：Müller, Frithjof E.
更多信息请下载全文后查看