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1. 发明授权

US5896350A Magneto-optical recording medium and method of producing the same 失效
公开(公告)号：US5896350A
公开(公告)日：1999-04-20
申请号：US806223
申请日：1997-02-24
申请人： Ken Tamanoi , Toshio Sugimoto , Tsutomu Tanaka , Motonobu Mihara , Keiji Shono
发明人： Ken Tamanoi , Toshio Sugimoto , Tsutomu Tanaka , Motonobu Mihara , Keiji Shono
IPC分类号： G11B11/10 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10515 , G11B11/10554 , G11B11/10582 , G11B11/10593
摘要： A magneto-optical recording medium, and a method of its production, a method of reading and an apparatus of reading the same capable of decreasing the magnetic field to be applied during MSR readout, or reading without applying magnetic field, by including first, second and third magnetic layers having specified magnetic characteristics.

2. 发明授权

US6031794A Magneto-optical recording medium and method of producing the same 失效
标题翻译：磁光记录介质及其制造方法
公开(公告)号：US6031794A
公开(公告)日：2000-02-29
申请号：US211735
申请日：1998-12-15
申请人： Ken Tamanoi , Toshio Sugimoto , Tsutomu Tanaka , Motonobu Mihara , Keiji Shono
发明人： Ken Tamanoi , Toshio Sugimoto , Tsutomu Tanaka , Motonobu Mihara , Keiji Shono
IPC分类号： G11B11/10 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10515 , G11B11/10554 , G11B11/10582 , G11B11/10593
摘要： A magneto-optical recording medium, and a method of its production, a method of reading and an apparatus of reading the same capable of decreasing the magnetic field to be applied during MSR readout, or reading without applying magnetic field, by including first, second and third magnetic layers having specified magnetic characteristics.
摘要翻译：一种磁光记录介质及其制造方法，读取方法及其读取装置，能够减少在MSR读出期间施加的磁场，或者在不施加磁场的情况下通过包括第一，第二和具有规定磁特性的第三磁性层。

3. 发明授权

US06356516B2 Magneto-optical recording medium and reproducing method for information recorded on the medium 失效
标题翻译：用于记录在介质上的信息的磁光记录介质和再现方法
公开(公告)号：US06356516B2
公开(公告)日：2002-03-12
申请号：US09732092
申请日：2000-12-07
申请人： Ken Tamanoi , Keiji Shono , Sumio Kuroda , Motonobu Mihara , Koji Matsumoto
发明人： Ken Tamanoi , Keiji Shono , Sumio Kuroda , Motonobu Mihara , Koji Matsumoto
IPC分类号： G11B1100
CPC分类号： G11B11/10584 , G11B11/10515 , G11B11/10593 , Y10S428/90 , Y10T428/12861 , Y10T428/26 , Y10T428/265
摘要： A magneto-optical recording medium capable of perfectly masking a mark adjacent to a mark to be reproduced thereby improvng reproduction output. The magneto-optical recording medium includes a transparent substrate, a magnetic reproducing layer laminated on the transparent substrate, a nonmagnetic intermediate layer laminated on the magnetic reproducing layer, and a magnetic recording layer laminated on the nonmagnetic intermediate layer. The reproducing layer has an easy direction of magnetization in a plane at room temperature, and has an easy direction of magnetization perpendicular to a film surface at a given temperature or higher. The nonmagnetic intermediate layer is thin enough to allow magnetostatic bond between the recording layer and the reproducing layer at the given temperature or higher. Instead of the nonmagnetic intermediate layer, a magnetic intermediate layer having an easy direction of magnetization in a plane from room temperature to its Curie temperature may be interposed between the reproducing layer and the recording layer.
摘要翻译：一种磁光记录介质，其能够完美地掩蔽与要再现的标记相邻的标记，从而提高再现输出。磁光记录介质包括透明基板，层叠在透明基板上的磁性再现层，层叠在磁性再现层上的非磁性中间层以及层叠在非磁性中间层上的磁记录层。再现层在室温下在平面中具有容易的磁化方向，并且在给定温度或更高温度下具有与膜表面垂直的易磁化方向。非磁性中间层足够薄，以允许在给定温度或更高温度下记录层和再生层之间的静磁结合。代替非磁性中间层，可以在再现层和记录层之间插入在从室温到其居里温度的平面中具有容易的磁化方向的磁性中间层。

4. 发明授权

US06248439B1 Magneto-optical recording medium and reproducing method for information recorder on the medium 失效
标题翻译：具有改善磁层的磁光记录介质
公开(公告)号：US06248439B1
公开(公告)日：2001-06-19
申请号：US08368607
申请日：1995-01-04
申请人： Ken Tamanoi , Keiji Shono , Sumio Kuroda , Motonobu Mihara , Koji Matsumoto
发明人： Ken Tamanoi , Keiji Shono , Sumio Kuroda , Motonobu Mihara , Koji Matsumoto
IPC分类号： G11B566
CPC分类号： G11B11/10584 , G11B11/10515 , G11B11/10593 , Y10S428/90 , Y10T428/12861 , Y10T428/26 , Y10T428/265
摘要： A magneto-optical recording medium capable of perfectly masking a mark adjacent to a mark to be reproduced thereby improving a reproduction output. The magneto-optical recording medium includes a transparent substrate, a magnetic reproducing layer laminated on the transparent substrate, a nonmagnetic intermediate layer laminated on the magnetic reproducing layer, and a magnetic recording layer laminated on the nonmagnetic intermediate layer. The reproducing layer has an easy direction of magnetization in a plane at room temperature, and has an easy direction of magnetization perpendicular to a film surface at a given temperature or higher. The nonmagnetic intermediate layer is thin enough to allow magnetostatic bond between the recording layer and the reproducing layer at the given temperature or higher. Instead of the nonmagnetic intermediate layer, a magnetic intermediate layer having an easy direction of magnetization in a plane from room temperature to its Curie temperature may be interposed between the reproducing layer and the recording layer.
摘要翻译：一种磁光记录介质，其能够完美地掩蔽与要再现的标记相邻的标记，从而改善再现输出。磁光记录介质包括透明基板，层叠在透明基板上的磁性再现层，层叠在磁性再现层上的非磁性中间层以及层叠在非磁性中间层上的磁记录层。再现层在室温下在平面中具有容易的磁化方向，并且在给定温度或更高温度下具有与膜表面垂直的易磁化方向。非磁性中间层足够薄，以允许在给定温度或更高温度下记录层和再生层之间的静磁结合。代替非磁性中间层，可以在再现层和记录层之间插入在从室温到其居里温度的平面中具有容易的磁化方向的磁性中间层。

5. 发明授权

US6030716A Magneto-optical recording medium and method of reproducing information recorded on such medium 失效
标题翻译：磁光记录介质和再现记录在这种介质上的信息的方法
公开(公告)号：US6030716A
公开(公告)日：2000-02-29
申请号：US971970
申请日：1997-11-17
申请人： Haruhiko Izumi , Ken Tamanoi , Masaharu Moritsugu , Miyozo Maeda , Toshio Sugimoto , Koji Matsumoto , Motonobu Mihara
发明人： Haruhiko Izumi , Ken Tamanoi , Masaharu Moritsugu , Miyozo Maeda , Toshio Sugimoto , Koji Matsumoto , Motonobu Mihara
IPC分类号： G11B11/10 , G11B7/125 , G11B11/105 , G11B5/66
CPC分类号： G11B7/126 , G11B11/10515 , G11B11/10584 , G11B11/10586 , G11B11/10595 , G11B11/10597 , Y10S428/90
摘要： A magneto-optical recording medium adapted for reproduction of a high resolution signal without the necessity of a reproducing magnetic field. The magneto-optical recording medium comprises a transparent substrate and deposits of a reproducing layer, a switch layer and a recording layer formed on the transparent substrate successively. The reproducing layer is a perpendicular magnetization film at a room temperature but is turned to an in-plane magnetization film when heated beyond a predetermined temperature. Each of the switch layer and the recording layer is a perpendicular magnetization film. The respective Curie temperatures Tc1, Tc2 and Tc3 of the reproducing layer, the switch layer and the recording layer satisfy the relationship of Tc1>Tc3>Tc2. When a reproducing laser beam is irradiated to the recording medium, the switched connection between the reproducing layer and the recording layer is interrupted in a high temperature region heated beyond the Curie temperature of the switch layer, whereby the reproducing layer is caused to present in-plane magnetization.
摘要翻译：一种适于再现高分辨率信号而不需要再现磁场的磁光记录介质。磁光记录介质依次包括透明基板和再现层，开关层和形成在透明基板上的记录层的沉积物。再现层是在室温下的垂直磁化膜，但是当被加热超过预定温度时转变为面内磁化膜。开关层和记录层中的每一个都是垂直磁化膜。再现层，开关层和记录层的各居里温度Tc1，Tc2，Tc3满足Tc1> Tc3> Tc2的关系。当再现激光束被照射到记录介质上时，再现层和记录层之间的切换连接在加热超过开关层居里温度的高温区域中断，平面磁化。

6. 发明授权

US5691072A Magneto-optical recording medium and method of reproducing information recorded on such medium 失效
标题翻译：磁光记录介质和再现记录在这种介质上的信息的方法
公开(公告)号：US5691072A
公开(公告)日：1997-11-25
申请号：US381642
申请日：1995-01-31
申请人： Haruhiko Izumi , Ken Tamanoi , Masaharu Moritsugu , Miyozo Maeda , Toshio Sugimoto , Koji Matsumoto , Motonobu Mihara
发明人： Haruhiko Izumi , Ken Tamanoi , Masaharu Moritsugu , Miyozo Maeda , Toshio Sugimoto , Koji Matsumoto , Motonobu Mihara
IPC分类号： G11B11/10 , G11B7/125 , G11B11/105 , G11B5/66 , G11B11/00
CPC分类号： G11B7/126 , G11B11/10515 , G11B11/10584 , G11B11/10586 , G11B11/10595 , G11B11/10597 , Y10S428/90
摘要： Disclosed is a magneto-optical recording medium adapted for reproduction of a high resolution signal without the necessity of a reproducing magnetic field, whereby the magneto-optical recording medium comprises a transparent substrate, a reproducing layer, a switch layer and a recording layer formed on the transparent substrate successively. The reproducing layer is a perpendicular magnetization film at a room temperature but is turned to an in-plane magnetization film when heated beyond a predetermined temperature. Each of the switch layer and the recording layer is a perpendicular magnetization film. The respective Curie temperatures Tc1, Tc2 and Tc3 of the reproducing layer, the switch layer and the recording layer satisfy the relationship of Tc1>Tc3>Tc2.
摘要翻译：公开了一种适于再现高分辨率信号而不需要再现磁场的磁光记录介质，由此磁光记录介质包括透明基板，再现层，开关层和形成在透明基板。再现层是在室温下的垂直磁化膜，但是当被加热超过预定温度时转变为面内磁化膜。开关层和记录层中的每一个都是垂直磁化膜。再现层，开关层和记录层的各居里温度Tc1，Tc2，Tc3满足Tc1> Tc3> Tc2的关系。

7. 发明授权

US06770387B2 Magneto-optical recording medium and method of reproducing the same 失效
公开(公告)号：US06770387B2
公开(公告)日：2004-08-03
申请号：US10004726
申请日：2001-12-05
申请人： Tsutomu Tanaka , Motonobu Mihara , Ken Tamanoi
发明人： Tsutomu Tanaka , Motonobu Mihara , Ken Tamanoi
IPC分类号： G11B562
CPC分类号： G11B11/10593 , G11B11/10515 , Y10T428/1121
摘要： A magneto-optical recording medium comprising four magnetic layers including a mask layer, a reproduction layer, an intermediate layer and a recording layer, wherein the reproduction layer and the recording layer each have a direction of easy magnetization extending in a layer stacking direction at room temperature, the mask layer and the intermediate layer each have a direction of easy magnetization extending in an in-plane direction at room temperature, the mask layer, the reproduction layer, the intermediate layer and the recording layer have Curie temperatures Tc1, Tc2, Tc3 and Tc4, respectively, which satisfy relationships of Tc3

8. 发明授权

US07164623B2 Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US07164623B2
公开(公告)日：2007-01-16
申请号：US10925580
申请日：2004-08-25
申请人： Ryo Kurita , Ken Tamanoi , Shoyu Ito , Motonobu Mihara
发明人： Ryo Kurita , Ken Tamanoi , Shoyu Ito , Motonobu Mihara
IPC分类号： G11B11/00
CPC分类号： G11B11/10515 , G11B11/10584 , G11B11/10593
摘要： The present invention provides a magneto-optical recording medium including a recording layer, an intermediate layer and a reproducing layer stacked in this order. Information recorded in the recording layer is transferred to the reproducing layer through the intermediate layer so that the information is reproduced. The reproducing layer includes an upper reproducing layer, a coupling layer, and a lower reproducing layer formed in this order on the intermediate layer. Magnetic information in the upper reproducing layer in an area whose temperature is increased to a predetermined temperature is transferred to the lower reproducing layer through the coupling layer.
摘要翻译：本发明提供一种磁光记录介质，其包括依次堆叠的记录层，中间层和再现层。记录在记录层中的信息通过中间层传送到再现层，从而再现信息。再现层包括在中间层上依次形成的上再现层，耦合层和下再现层。通过耦合层将温度升高到预定温度的区域中的上再现层中的磁信息传送到下再现层。

9. 发明授权

US5965285A Magneto-optical recording medium and reproducing method for the same 失效
标题翻译：磁光记录介质及其再现方法
公开(公告)号：US5965285A
公开(公告)日：1999-10-12
申请号：US557604
申请日：1995-11-14
申请人： Motonobu Mihara , Ken Tamanoi
发明人： Motonobu Mihara , Ken Tamanoi
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10584 , G11B11/10515 , G11B11/10586 , Y10S428/90
摘要： A magneto-optical recording medium having first magnetic layer and second magnetic layers respectively serving as recording and reproduction layers. When an exchange-coupled force is induced between the layers, the reproducing layer takes on an identical magnetization direction as the recording layers permitting the data stored in the recording layer to be reproduced via the reproducing layer. An intermediate layer formed between the first and second magnetic layers is formed of an antiferromagnetic and has a N.epsilon.el temperature higher than the temperature at which the reproducing layer mirrors the magnetization direction of the recording layer. A medium in accordance with the present invention may also include a third magnetic layer for controlling the recording and erasing of data from the first layer, and a fourth magnetic layer for holding a magnetization direction during a data erasing operation.
摘要翻译：一种具有分别用作记录和再现层的第一磁性层和第二磁性层的磁光记录介质。当在层之间感应到交换耦合力时，再现层采用与允许经由再现层再现存储在记录层中的数据的记录层相同的磁化方向。形成在第一和第二磁性层之间的中间层由反铁磁体形成，并且具有比再现层反映记录层的磁化方向的温度高的N + E，acuε+ EE el温度。根据本发明的介质还可以包括用于控制来自第一层的数据的记录和擦除的第三磁性层和用于在数据擦除操作期间保持磁化方向的第四磁性层。

10. 发明申请

US20050024993A1 Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US20050024993A1
公开(公告)日：2005-02-03
申请号：US10925580
申请日：2004-08-25
申请人： Ryo Kurita , Ken Tamanoi , Shoyu Ito , Motonobu Mihara
发明人： Ryo Kurita , Ken Tamanoi , Shoyu Ito , Motonobu Mihara
IPC分类号： G11B7/26 , G11B11/00 , G11B11/105
CPC分类号： G11B11/10515 , G11B11/10584 , G11B11/10593
摘要： The present invention provides a magneto-optical recording medium including a recording layer, an intermediate layer and a reproducing layer stacked in this order. Information recorded in the recording layer is transferred to the reproducing layer through the intermediate layer so that the information is reproduced. The reproducing layer includes an upper reproducing layer, a coupling layer, and a lower reproducing layer formed in this order on the intermediate layer. Magnetic information in the upper reproducing layer in an area whose temperature is increased to a predetermined temperature is transferred to the lower reproducing layer through the coupling layer.
摘要翻译：本发明提供一种磁光记录介质，其包括依次堆叠的记录层，中间层和再现层。记录在记录层中的信息通过中间层传送到再现层，从而再现信息。再现层包括在中间层上依次形成的上再现层，耦合层和下再现层。通过耦合层将温度升高到预定温度的区域中的上再现层中的磁信息传送到下再现层。

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