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111. 发明授权

US4666789A Magneto-optic recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US4666789A
公开(公告)日：1987-05-19
申请号：US705917
申请日：1985-02-26
申请人： Catherine Gueugnon , Pierre Bernstein
发明人： Catherine Gueugnon , Pierre Bernstein
IPC分类号： G11B11/10 , G11B5/64 , G11B11/105 , G11C13/06 , G11B7/24
CPC分类号： G11B11/10586 , G11B11/10591 , G11B5/64 , Y10S428/90 , Y10S428/928 , Y10T428/12465 , Y10T428/12861 , Y10T428/12944 , Y10T428/12951
摘要： A multilayer magnetic recording medium including at least one magnetic layer (CMOI) formed of an alloy including one of the group of heavy rare earths and a metal of the group of the first series of transition metals surrounded by at least two dielectric layers.According to the invention, the magnetic medium is characterized in that it includes means for preventing the diminution of the number of atoms of rare earth participating in the magnetism of the magnetic layer disposed on both sides of the magnetic layer.Applicable to magnetooptic disks.
摘要翻译：一种多层磁记录介质，包括由包含重稀土族中的一种和由至少两个电介质层包围的第一系列过渡金属组的金属形成的至少一个磁性层（CMOI）。根据本发明，磁介质的特征在于它包括用于防止参与设置在磁性层两侧的磁性层磁性的稀土原子数减少的装置。适用于磁光盘。

112. 发明授权

US4649519A Self biasing thermal magneto-optic medium 失效
标题翻译：自偏磁热磁介质
公开(公告)号：US4649519A
公开(公告)日：1987-03-10
申请号：US781618
申请日：1985-09-30
申请人： Shu S. Sun , Curt W. Laumann
发明人： Shu S. Sun , Curt W. Laumann
IPC分类号： G11B11/10 , G03G5/16 , G03G19/00 , G11B11/105 , G11C13/06
CPC分类号： G11B11/105 , G03G19/005 , G03G5/16 , G11B11/10591
摘要： A layer in a magnetic storage medium provides a biasing magnetic field for writing data. The layer exhibits a net magnetization with an orientation in a first direction when the layer is at a temperature below its compensation temperature and a net magnetization with an orientation in a second direction different from the first direction when heated as by a laser to a temperature above its compensation temperature, but below its Curie point temperature.
摘要翻译：磁存储介质中的层提供用于写入数据的偏置磁场。当层处于低于其补偿温度的温度时，该层表现出具有在第一方向上的取向的净磁化，并且当通过激光加热至上述温度时，具有在与第一方向不同的第二方向上的取向的净磁化其补偿温度，但低于其居里点温度。

113. 发明授权

US4579777A Opto-magnetic recording medium 失效
标题翻译：光磁记录介质
公开(公告)号：US4579777A
公开(公告)日：1986-04-01
申请号：US753041
申请日：1985-07-02
申请人： Kazuoki Honguu , Mitsuharu Sawamura , Kazuhiko Kikuchi
发明人： Kazuoki Honguu , Mitsuharu Sawamura , Kazuhiko Kikuchi
IPC分类号： G11B11/10 , G11B11/105 , G11C13/06 , G11B7/24
CPC分类号： G11B11/10582 , G11B11/10591 , Y10S428/90 , Y10T428/265 , Y10T428/31692
摘要： An opto-magnetic recording medium comprises a light-transmitting substrate, a first protective layer comprising a metal film provided in contact with the substrate and transmitting therethrough almost all of a light entering through the substrate, a second protective layer formed of a dielectric material provided on the first protective layer, and a magnetic recording layer provided on the second protective layer and having information recorded or reproduced thereon by the light transmitted through the substrate and the first and second protective layers.
摘要翻译：光磁记录介质包括透光基板，第一保护层，其包括设置成与基板接触的金属膜，并且透射通过基板的几乎全部的光，提供由介电材料形成的第二保护层在第一保护层上设置的磁记录层和设置在第二保护层上的磁记录层，并且通过透过基板和第一和第二保护层的光记录或再现信息。

114. 发明授权

US10006884B1 Method and apparatus for determining Curie temperature distribution of a sample of magnetic material 有权
公开(公告)号：US10006884B1
公开(公告)日：2018-06-26
申请号：US14822103
申请日：2015-08-10
申请人： Seagate Technology LLC
发明人： Ganping Ju , Jason L Presseky , Roy W. Chantrell , Xiaowei Wu , Xi Chen , Xiaobin Zhu , Yingguo Peng
IPC分类号： G01R33/00 , G01N27/80
CPC分类号： G01N27/80 , G01K7/00 , G03G5/16 , G06F17/18 , G11B11/10591 , G11B2005/0021 , H01F41/304 , H01L37/00 , H01L37/04
摘要： Determining a Curie temperature (Tc) distribution of a sample comprising magnetic material involves subjecting the sample to an electromagnetic field, heating the sample over a range of temperatures, generating a signal representative of a parameter of the sample that changes as a function of changing sample temperature while the sample is subjected to the electromagnetic field, and determining the Tc distribution of the sample using the generated signal and a multiplicity of predetermined parameters of the sample.

115. 发明申请

US20050226136A1 Magnetooptic recording medium and method for producing the same 审中-公开
标题翻译：磁光记录介质及其制造方法
公开(公告)号：US20050226136A1
公开(公告)日：2005-10-13
申请号：US11126090
申请日：2005-05-10
申请人： Mineo Moribe , Takahiro Umada , Keiji Shono
发明人： Mineo Moribe , Takahiro Umada , Keiji Shono
IPC分类号： G11B11/105 , G11B7/24
CPC分类号： G11B11/10591
摘要： A magneto-optical recording medium (D1) includes a soft magnetic layer (2) and a magneto-optical recording layer (3) laminated sequentially onto a substrate (1) and is provided with a plurality of grooves (G) and lands (L). The product of the saturation magnetic flux density and thickness of the soft magnetic layer (2) is made different for the respective grooves (G) and lands (L). Thus, with respect to each groove (G) and each land (L), the magnetic focusing effect can be enhanced for one of these with a greater product of saturation magnetic flux density and thickness of the soft magnetic layer (2), while the effect can be weakened for the other one with a smaller product of saturation magnetic flux density and thickness of the soft magnetic layer. This enables the incidence of cross-writing to be suppressed.
摘要翻译：磁光记录介质（D 1）包括顺序层叠在基板（1）上的软磁性层（2）和磁光记录层（3），并且设置有多个凹槽（G）和焊盘 L）。对于各个沟槽（G）和焊盘（L），使软磁性层（2）的饱和磁通密度和厚度的乘积不同。因此，对于每个沟槽（G）和每个焊盘（L），可以提高其中的一个具有更大的饱和磁通密度乘积和软磁层（2）的厚度的磁聚焦效应，而对于另一个具有较小的饱和磁通密度乘积和软磁层厚度的效果可以减弱。这使得能够抑制交叉写入的发生。

116. 发明申请

US20050086679A1 Magneto-optical recording medium and method for manufacturing the same 有权
标题翻译：磁光记录介质及其制造方法
公开(公告)号：US20050086679A1
公开(公告)日：2005-04-21
申请号：US10497273
申请日：2002-11-25
申请人： Motoyoshi Murakami , Takeshi Sakaguchi , Masahiro Birukawa
发明人： Motoyoshi Murakami , Takeshi Sakaguchi , Masahiro Birukawa
IPC分类号： G11B7/007 , G11B11/105 , G11B11/00 , G11B7/24 , G11B23/03
CPC分类号： B82Y10/00 , G11B5/746 , G11B7/24076 , G11B7/24079 , G11B11/10515 , G11B11/10582 , G11B11/10584 , G11B11/10586 , G11B11/10591
摘要： It is an object of the present invention to provide a magneto-optical recording medium including a recording film having at least a reproduction layer, an intermediate layer, and a recording layer, on an optical disk substrate, wherein the recording film is a magnetic film that is magnetically coupled and that has magnetic anisotropy in a direction vertical to its film surface, the recording magnetic domains formed in the recording layer are transferred to the reproduction layer, and recording information is reproduced by domain wall movement in the reproduction layer, and the recording layer has columnar structures that are oriented substantially vertically. Thus, it is possible to provide a magneto-optical recording medium with which signals below the diffraction limit of the light spot for recording and reproducing information can be reproduced at high speed, with which the recording density and the transfer speed can be significantly increased, and with which stable recording magnetic domains can be formed even if recorded at high density.
摘要翻译：本发明的目的是提供一种磁光记录介质，其包括在光盘基板上至少具有再现层，中间层和记录层的记录膜，其中记录膜是磁性膜其磁耦合并且在垂直于其膜表面的方向上具有磁各向异性，将形成在记录层中的记录磁畴传送到再现层，并且通过再现层中的畴壁移动来再现记录信息，并且记录层具有基本垂直取向的柱状结构。因此，可以提供一种磁光记录介质，可以高速再现用于记录和再现信息的光点的衍射极限以下的信号，从而可以显着提高记录密度和传送速度，即使以高密度记录，也可以形成稳定的记录磁畴。

117. 发明申请

US20040115482A1 Recording layer of magneto-optical storage medium having sublayer and method of fabricating the same 失效
标题翻译：具有子层的磁光存储介质的记录层及其制造方法
公开(公告)号：US20040115482A1
公开(公告)日：2004-06-17
申请号：US10721636
申请日：2003-11-24
发明人： Dong Woo Suh , Ho Jun Ryu , Yeung Joon Sohn , Yong Woo Park , Mun Cheol Paek
IPC分类号： G11B005/66
CPC分类号： G11B11/10582 , G11B11/10584 , G11B11/10591
摘要： A recording layer of a magneto-optical storage medium having a sublayer in accordance with the present invention comprises a recording layer on which information is recorded and stored; and a sublayer formed above or below the recording layer and made up of an alloy containing a transition metal, wherein a magnetic anisotropy energy of the sublayer is exchange-coupled to the recording layer, thereby enhancing a coercive force of the recording layer. The sublayer may be formed in a single-layered structure having one layer, or in a multi-layered structure having a plurality of layers. The sublayer is preferably made up of an alloy containing a transition metal used for the recording layer. According to the present invention, the coercive force of the recording layer can be increased by an exchange coupling effect between the recording layer and its adjacent sublayer, and thus, the stability of the magnetic domain in the recording layer can be improved. Therefore, the size of the magnetic domain can be significantly reduced, and the density of recording can be increased.
摘要翻译：根据本发明的具有子层的磁光存储介质的记录层包括记录和存储信息的记录层; 以及形成在记录层的上方或下方并由含有过渡金属的合金构成的子层，其中子层的磁各向异性能量与记录层交换耦合，从而提高记录层的矫顽力。子层可以形成为具有一层的单层结构，或者具有多层的多层结构。子层优选由含有用于记录层的过渡金属的合金构成。根据本发明，可以通过记录层及其相邻子层之间的交换耦合效应来提高记录层的矫顽力，从而可以提高记录层中磁畴的稳定性。因此，可以显着地减小磁畴的尺寸，并且能够提高记录密度。

118. 发明授权

US06697323B1 Optical recording medium and method of manufacturing including smoothing treatment 失效
标题翻译：光记录介质及其制造方法，包括平滑处理
公开(公告)号：US06697323B1
公开(公告)日：2004-02-24
申请号：US09552758
申请日：2000-04-19
申请人： Takeshi Miki
发明人： Takeshi Miki
IPC分类号： G11B724
CPC分类号： G11B7/266 , G11B11/10584 , G11B11/10591
摘要： Provided are an optical recording medium and a method of manufacturing the optical recording medium, in which a reflective film, a dielectric film and a recording film are sequentially formed on a substrate, light being irradiated from an opposite side to the substrate, thereby causing recording and/or reproduction on the recording film to be carried out. At least one of surfaces of the reflective film and the dielectric film is subjected to a smoothing treatment by sputter etching for making a surface roughness equal to 0.75 nm or less. Thus, it is possible to reduce disk noises such as an erasing noise, a recording noise and the like.
摘要翻译：提供了一种光学记录介质和制造光学记录介质的方法，其中反射膜，电介质膜和记录膜依次形成在基板上，从与基板相反的一侧照射光，从而进行记录和/或在要执行的记录膜上的再现。通过溅射蚀刻对反射膜和电介质膜的至少一个表面进行平滑处理，以使表面粗糙度等于或小于0.75nm。因此，可以减少诸如擦除噪声，记录噪声等的磁盘噪声。

119. 发明申请

US20020159339A1 Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US20020159339A1
公开(公告)日：2002-10-31
申请号：US10132837
申请日：2002-04-25
发明人： Junji Hirokane , Noboru Iwata
IPC分类号： G11B011/00
CPC分类号： G11B11/10593 , G11B11/10584 , G11B11/10591
摘要： A magneto-optical recording medium is provided with at least: a recording layer, made of a perpendicular magnetization film, in which magnetized information is recorded in the form of a perpendicular direction of magnetization; a magnetic flux generating layer, made of a perpendicular magnetization film, which is exchange-coupled with the recording layer; and a read-out layer, having a perpendicular magnetization at a predetermined temperature or higher temperatures than the predetermined temperature, which copies the magnetized information of the recording layer by magneto-static coupling with the magnetic flux generating layer and the recording layer, wherein the magnetic flux generating layer is a magnetic film having a lower Curie temperature than that of the recording layer and having a larger total magnetization than that of the recording layer at a temperature at which the read-out layer has a perpendicular magnetization.
摘要翻译：磁光记录介质至少设有：由垂直磁化膜制成的记录层，其中磁化信息以垂直磁化方向的形式被记录; 由与记录层交换耦合的垂直磁化膜制成的磁通量产生层; 以及读出层，其具有在比预定温度高的预定温度或更高温度的垂直磁化，其通过与磁通量产生层和记录层的磁静耦合来复制记录层的磁化信息，其中磁通量产生层是具有比记录层低的居里温度的磁性膜，并且在读出层具有垂直磁化的温度下具有比记录层更高的总磁化强度的磁性膜。

120. 发明授权

US06399227B1 Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US06399227B1
公开(公告)日：2002-06-04
申请号：US08160976
申请日：1993-11-30
申请人： Yoshihiko Kudoh , Yasumori Hino , Yuuichi Fukamachi , Masahiro Birukawa
发明人： Yoshihiko Kudoh , Yasumori Hino , Yuuichi Fukamachi , Masahiro Birukawa
IPC分类号： B32B1518
CPC分类号： G11B11/10591 , G11B11/10523 , G11B11/10584 , Y10T428/1143 , Y10T428/12646 , Y10T428/12861 , Y10T428/12931 , Y10T428/24942 , Y10T428/265
摘要： A magneto-optical recording medium including a recording layer for recording information and a substrate for supporting the recording layer is disclosed. The recording layer includes: a recording magnetic film for recording the information, the recording magnetic film being formed of a perpendicular magnetic anisotropy film; a readout magnetic film for optically reading out the information, the readout magnetic film being capable of being magnetically coupled with the recording magnetic film by an exchange-coupling force; and a controlling magnetic film, provided between the recording magnetic film and the readout magnetic film, for controlling the exchange-coupling force. The controlling magnetic film has in-plane magnetic anisotropy at room temperature, thereby suppressing the exchange-coupling force between the recording magnetic film and the readout magnetic film, and when the temperature of the controlling magnetic film reaches a predetermined temperature by a readout light irradiation, the controlling magnetic film stops the suppression of the exchange-coupling force, whereby the information recorded in the recording magnetic film is magnetically transferred to the readout magnetic film.
摘要翻译：公开了包括用于记录信息的记录层和用于支撑记录层的基板的磁光记录介质。记录层包括：用于记录信息的记录磁性膜，记录磁性膜由垂直磁各向异性膜形成; 用于光学读出信息的读出磁膜，读出磁膜能够通过交换耦合力与记录磁性膜磁耦合; 以及设置在记录磁性膜和读出磁性膜之间的用于控制交换耦合力的控制磁性膜。控制磁性膜在室温下具有面内的磁各向异性，从而抑制记录磁性膜与读出的磁性膜之间的交换耦合力，并且当控制磁性膜的温度通过读出光照射达到预定温度时控制磁膜阻止了交换耦合力的抑制，由此记录在记录磁膜中的信息被磁性地传送到读出的磁性膜。

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