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51.发明授权Substrate for magnetic recording medium, magnetic recording medium, and magnetic recording apparatus 有权用于磁记录介质的基板，磁记录介质和磁记录装置公开(公告)号：US07760467B2
公开(公告)日：2010-07-20
申请号：US11397892
申请日：2006-04-05
申请人： Kaori Kimura , Masatoshi Sakurai , Akira Kikitsu , Yoshiyuki Kamata , Satoshi Shirotori , Hiroyuki Hieda
发明人： Kaori Kimura , Masatoshi Sakurai , Akira Kikitsu , Yoshiyuki Kamata , Satoshi Shirotori , Hiroyuki Hieda
IPC分类号： G11B5/82
摘要： It is possible to improve the recording and reproducing S/N ratio, the reproduction signal intensity, and the degree of high density recording. There are provided a plurality of recording tracks formed on a substrate, each recording track being formed of a magnetic material, and non-recording sections formed on the substrate, each non-recording section separating adjacent recording tracks, each recording track including a plurality of recording sections and connecting sections for connecting the recording sections adjacent thereto in a track longitudinal direction, and each connecting section having a cross-sectional area in a track width direction that is smaller than a cross-sectional area in a track width direction of adjacent recording sections.
摘要翻译： 可以改善记录和再现S / N比，再现信号强度和高密度记录程度。 提供了形成在基板上的多个记录轨道，每个记录磁道由磁性材料形成，而非记录部分形成在基板上，每个非记录部分分隔相邻的记录磁道，每个记录磁道包括多个 记录部分和连接部分，用于在轨道纵向方向上连接与其相邻的记录部分，并且每个连接部分在轨道宽度方向上的横截面积小于相邻记录的轨道宽度方向上的横截面积 部分。
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公开(公告)号：US08652338B2
公开(公告)日：2014-02-18
申请号：US13678303
申请日：2012-11-15
IPC分类号： B44C1/22
摘要： A magnetic recording medium a magnetic recording medium includes a soft magnetic layer formed on a substrate, magnetic patterns made of a protruded ferromagnetic layer separated from each other on the soft magnetic layer, and a nonmagnetic layer formed between the magnetic patterns, a nitrogen concentration therein being higher on a surface side than on a substrate side.
摘要翻译： 一种磁记录介质，磁记录介质包括形成在基板上的软磁性层，在软磁层上由彼此分离的突出的铁磁层形成的磁性图案，以及形成在磁性图案之间的非磁性层，其中的氮浓度 在表面侧比在基板侧高。
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公开(公告)号：US20120067844A1
公开(公告)日：2012-03-22
申请号：US13185822
申请日：2011-07-19
申请人： Yoshiyuki Kamata , Kaori Kimura , Takeshi Iwasaki
发明人： Yoshiyuki Kamata , Kaori Kimura , Takeshi Iwasaki
CPC分类号： G11B5/855
摘要： According to one embodiment, in a method manufacturing a magnetic recording medium which is configured such that a ferromagnetic recording part is formed on a substrate in a desired track pattern or a desired bit pattern, a ferromagnetic film is formed on a substrate, and then a B thin film is formed on a region for isolating the ferromagnetic film between tracks or bits. Subsequently, ions are radiated on the B thin film, thereby increasing a B content of the region of the ferromagnetic film, on which the B thin film has been formed, and nonmagnetizing the region.
摘要翻译： 根据一个实施例，在制造磁记录介质的方法中，磁记录介质被配置为使得铁磁记录部分以期望的轨道图案或期望的位图形式形成在基板上，在基板上形成铁磁性膜，然后 B薄膜形成在用于在轨道或位之间隔离铁磁膜的区域。 随后，在B薄膜上照射离子，从而增加已经形成B薄膜的铁磁性膜的区域的B含量，并且使该区域不会磁化。
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公开(公告)号：US08049993B2
公开(公告)日：2011-11-01
申请号：US12076004
申请日：2008-03-12
摘要： A magnetic recording medium includes: a substrate; a recording layer that is formed on the substrate to have a grooved pattern; and a protection layer formed on the recording layer to fill in the grooved pattern, wherein the recording layer is defined to have a servo portion that retains servo data and a recording track portion that retains recording data, and wherein a first film thickness of the protection layer at the servo portion is larger than a second film thickness of the protection layer at the recording track portion by a thickness that is in a range from 1 nm to 10 nm.
摘要翻译： 磁记录介质包括：基板; 在所述基板上形成有凹槽图案的记录层; 以及形成在所述记录层上以填充所述带槽图案的保护层，其中所述记录层被限定为具有保持伺服数据的伺服部分和保留记录数据的记录轨道部分，并且其中所述保护层的第一膜厚度 伺服部分的层位于记录磁道部分处的保护层的第二膜厚度大于1nm至10nm范围内的厚度。
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55.发明授权公开(公告)号：US08980451B2
公开(公告)日：2015-03-17
申请号：US13185880
申请日：2011-07-19
申请人： Yoshiyuki Kamata , Kaori Kimura , Takeshi Iwasaki
发明人： Yoshiyuki Kamata , Kaori Kimura , Takeshi Iwasaki
摘要： According to one embodiment, in a method of manufacturing a magnetic recording medium which is configured such that a ferromagnetic recording part is formed on a substrate in a desired track pattern or a desired bit pattern, a ferromagnetic film is formed on the substrate, and then a mask is formed on the ferromagnetic film, the mask having an opening above a region for isolating the ferromagnetic film between tracks or bits. Subsequently, a B-based gas is radiated on the region of the ferromagnetic film through the opening of the mask, thereby increasing a B content of the region to nonmagnetize the region.
摘要翻译： 根据一个实施例，在制造磁记录介质的方法中，磁记录介质被构造为使得铁磁记录部分以期望的轨迹图案或期望的位图形式形成在基板上，在基板上形成铁磁性膜，然后 在铁磁膜上形成掩模，该掩模在磁道或位之间隔离铁磁膜的区域之上具有开口。 随后，通过打开掩模，在铁磁膜的区域上辐射B基气体，从而增加该区域的B含量以使该区域不磁化。
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公开(公告)号：US20080241595A1
公开(公告)日：2008-10-02
申请号：US12076949
申请日：2008-03-25
CPC分类号： G11B5/855 , G11B5/667 , G11B5/7325
摘要： A magnetic recording medium includes a soft magnetic underlayer formed on a substrate, magnetic patterns made of a ferromagnetic material and provided separately on the soft magnetic underlayer, and a nonmagnetic layer including two sublayers or more of a same material and formed on the soft magnetic underlayer between the magnetic patterns.
摘要翻译： 磁记录介质包括形成在基板上的软磁性底层，由铁磁材料制成的磁性图案，分别设置在软磁性底层上，以及包含两层或更多层相同材料的非磁性层，形成在软磁性底层 在磁性图案之间。
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公开(公告)号：US08338007B2
公开(公告)日：2012-12-25
申请号：US12285015
申请日：2008-09-26
IPC分类号： G11B5/667
摘要： A magnetic recording medium a magnetic recording medium includes a soft magnetic layer formed on a substrate, magnetic patterns made of a protruded ferromagnetic layer separated from each other on the soft magnetic layer, and a nonmagnetic layer formed between the magnetic patterns, a nitrogen concentration therein being higher on a surface side than on a substrate side.
摘要翻译： 一种磁记录介质，磁记录介质包括形成在基板上的软磁性层，在软磁层上由彼此分离的突出的铁磁层形成的磁性图案，以及形成在磁性图案之间的非磁性层，其中的氮浓度 在表面侧比在基板侧高。
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58.发明申请公开(公告)号：US20120069468A1
公开(公告)日：2012-03-22
申请号：US13185880
申请日：2011-07-19
申请人： Yoshiyuki KAMATA , Kaori Kimura , Takeshi Iwasaki
发明人： Yoshiyuki KAMATA , Kaori Kimura , Takeshi Iwasaki
摘要： According to one embodiment, in a method of manufacturing a magnetic recording medium which is configured such that a ferromagnetic recording part is formed on a substrate in a desired track pattern or a desired bit pattern, a ferromagnetic film is formed on the substrate, and then a mask is formed on the ferromagnetic film, the mask having an opening above a region for isolating the ferromagnetic film between tracks or bits. Subsequently, a B-based gas is radiated on the region of the ferromagnetic film through the opening of the mask, thereby increasing a B content of the region to nonmagnetize the region.
摘要翻译： 根据一个实施例，在制造磁记录介质的方法中，磁记录介质被构造为使得铁磁记录部分以期望的轨迹图案或期望的位图形式形成在基板上，在基板上形成铁磁性膜，然后 在铁磁膜上形成掩模，该掩模在磁道或位之间隔离铁磁膜的区域之上具有开口。 随后，通过打开掩模，在铁磁膜的区域上辐射B基气体，从而增加该区域的B含量以使该区域不磁化。
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公开(公告)号：US20090081482A1
公开(公告)日：2009-03-26
申请号：US12285015
申请日：2008-09-26
摘要： A magnetic recording medium a magnetic recording medium includes a soft magnetic layer formed on a substrate, magnetic patterns made of a protruded ferromagnetic layer separated from each other on the soft magnetic layer, and a nonmagnetic layer formed between the magnetic patterns, a nitrogen concentration therein being higher on a surface side than on a substrate side.
摘要翻译： 一种磁记录介质，磁记录介质包括形成在基板上的软磁性层，在软磁层上由彼此分离的突出的铁磁层形成的磁性图案，以及形成在磁性图案之间的非磁性层，其中的氮浓度 在表面侧比在基板侧高。
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公开(公告)号：US20080285174A1
公开(公告)日：2008-11-20
申请号：US12076004
申请日：2008-03-12
IPC分类号： G11B5/82
摘要： A magnetic recording medium includes: a substrate; a recording layer that is formed on the substrate to have a grooved pattern; and a protection layer formed on the recording layer to fill in the grooved pattern, wherein the recording layer is defined to have a servo portion that retains servo data and a recording track portion that retains recording data, and wherein a first film thickness of the protection layer at the servo portion is larger than a second film thickness of the protection layer at the recording track portion by a thickness that is in a range from 1 nm to 10 nm.
摘要翻译： 磁记录介质包括：基板; 在所述基板上形成有凹槽图案的记录层; 以及形成在所述记录层上以填充所述带槽图案的保护层，其中所述记录层被限定为具有保持伺服数据的伺服部分和保留记录数据的记录轨道部分，并且其中所述保护层的第一膜厚度 伺服部分的层位于记录磁道部分处的保护层的第二膜厚度大于1nm至10nm范围内的厚度。
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