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1.发明授权公开(公告)号：US08349163B2
公开(公告)日：2013-01-08
申请号：US12961388
申请日：2010-12-06
CPC分类号： G11B5/855 , B82Y10/00 , B82Y40/00 , C25D1/003 , C25D1/10 , G03F7/0002 , G11B5/746 , G11B5/865
摘要： According to one embodiment, an electroforming master comprises a patterns of protrusions and recesses formed on one major surface of an Si substrate having two major surfaces, corresponding to information for positioning of a read/write head (a preamble, address, and burst), recording tracks or recording bits. Impurity ions are doped in the surface of this patterns of protrusions and recesses. The impurity ion concentration distribution in the film thickness direction of the Si substrate has a peak in a portion from the patterns of protrusions and recesses surface to a depth of 40 nm in the film thickness direction. The impurity concentration of this peak is 1×1020 to 2×1021 ions/cm3.
摘要翻译： 根据一个实施例，电铸母版包括形成在具有两个主表面的Si衬底的一个主表面上的突起和凹槽的图案，其对应于用于定位读/写头（前导码，地址和突发）的信息， 记录轨道或记录位。 杂质离子掺杂在这种突起和凹陷图案的表面。 Si衬底的膜厚方向上的杂质离子浓度分布在从薄膜厚度方向的突起和凹陷表面的图案到深度为40nm的部分中具有峰值。 该峰的杂质浓度为1×1020〜2×1021离子/ cm3。
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公开(公告)号：US08440091B2
公开(公告)日：2013-05-14
申请号：US12638841
申请日：2009-12-15
CPC分类号： G11B5/855
摘要： According to one embodiment, a method of manufacturing a magnetic recording medium comprises forming a protective film on a ferromagnetic recording layer containing Cobalt (Co) on a substrate and forming a recess in both the protective film and the ferromagnetic recording layer at a part where a nonmagnetic layer is to be formed. The method further comprises removing Co from a part of the recess of the ferromagnetic recording layer to form the nonmagnetic layer that separates magnetic patterns made of the ferromagnetic recording layer containing Co. The nonmagnetic layer has an identical chemical composition as the ferromagnetic recording layer, except for the nonmagnetic layer having a lower Co concentration than the magnetic patterns.
摘要翻译： 根据一个实施例，制造磁记录介质的方法包括在包含钴（Co）的铁磁记录层上形成保护膜，并在保护膜和铁磁记录层中形成凹部， 将形成非磁性层。 该方法还包括从铁磁记录层的凹部的一部分去除Co以形成分离由含有Co的铁磁记录层制成的磁图案的非磁性层。非磁性层具有与铁磁记录层相同的化学成分， 对于具有比磁图案低的Co浓度的非磁性层。
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3.发明授权公开(公告)号：US08318331B2
公开(公告)日：2012-11-27
申请号：US11942904
申请日：2007-11-20
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/59688 , G11B5/743 , G11B5/855
摘要： According to one embodiment, a magnetic recording medium includes a substrate, and a magnetic recording layer formed on the substrate and having patterns of protrusions and recesses corresponding to a servo area and a recording area, in which the magnetic recording layer located in each of the recesses in the recording area has a thickness smaller than two thirds of a thickness of the magnetic recording layer corresponding to each of the protrusions, the magnetic recording layer remaining in each of the recesses in the recording area has a thickness of 1 nm or more, and a difference in height on a surface of the magnetic recording medium is 7 nm or less.
摘要翻译： 根据一个实施例，磁记录介质包括基板和形成在基板上并具有对应于伺服区域和记录区域的突起和凹槽的图案的磁记录层，其中磁记录层位于每个 记录区域中的凹部的厚度小于与每个突起相对应的磁记录层的厚度的三分之二，记录区域中每个凹槽中残留的磁记录层的厚度为1nm以上， 并且磁记录介质的表面上的高度差为7nm以下。
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4.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：US08059368B2
公开(公告)日：2011-11-15
申请号：US12801299
申请日：2010-06-02
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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5.发明申请公开(公告)号：US20110132754A1
公开(公告)日：2011-06-09
申请号：US12950235
申请日：2010-11-19
CPC分类号： C25D1/10 , B82Y10/00 , B82Y40/00 , G03F7/0002 , G11B5/82 , G11B5/855 , Y10T428/24612
摘要： According to one embodiment, patterns of protrusions and recesses includes a substrate including a conductive region on at least one major surface, and a projecting pattern layer formed on the conductive region on the major surface, and made of a microcrystalline material, a polycrystalline material, an amorphous material, or an oxide of the microcrystalline, polycrystalline, or amorphous material.
摘要翻译： 根据一个实施例，突起和凹陷的图案包括在至少一个主表面上包括导电区域的基板和形成在主表面上的导电区域上并由微晶材料制成的突出图案层，多晶材料， 非晶材料或微晶，多晶或无定形材料的氧化物。
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6.发明申请Magnetic Recording Media, Magnetic Recording Apparatus, and Method for Manufacturing Magnetic Recording Media 审中-公开磁记录媒体，磁记录装置及制造磁记录介质的方法公开(公告)号：US20110011830A1
公开(公告)日：2011-01-20
申请号：US12891570
申请日：2010-09-27
IPC分类号： G11B5/84
CPC分类号： G11B5/82 , G11B5/667 , G11B5/72 , G11B5/7315 , G11B5/7325 , G11B5/855
摘要： A magnetic recording media includes a toroidal substrate, a surface thereof is divided into a recording area located in a central part between an outer peripheral edge and an inner peripheral edge, edge areas located within 100 μm or more and 2,000 μm or less from the outer and inner peripheral edges, respectively, and adjacent areas located between the edge areas and the recording area, respectively, a magnetic film on the substrate, and a protective film on the magnetic film, in which the magnetic film is thinner in the edge areas than that in the adjacent areas, and at least a part of the protective film in the edge areas is thicker than that in the adjacent areas.
摘要翻译： 磁记录介质包括环形基板，其表面被分成位于外周边缘和内周边缘之间的中心部分的记录区域，位于外侧100微米以上至2000微米以下的边缘区域 分别位于边缘区域和记录区域之间的内周边缘和相邻区域，基板上的磁性膜和磁性膜上的保护膜，其中磁性膜在边缘区域中比薄 在相邻区域中，边缘区域中的保护膜的至少一部分比相邻区域的保护膜厚。
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7.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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8.发明申请SUBSTRATE FOR MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING AND REPRODUCING APPARATUS 有权用于磁记录介质，磁记录介质和磁记录和再现装置的基板公开(公告)号：US20090273858A1
公开(公告)日：2009-11-05
申请号：US12503458
申请日：2009-07-15
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： G11B5/187
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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9.发明申请Stamper for magnetic recording media, method of manufacturing magnetic recording media using the same, and method of manufacturing stamper for magnetic recording media 失效用于磁记录介质的压模，使用该磁记录介质的磁记录介质的制造方法以及制造用于磁记录介质的压模的方法公开(公告)号：US20070070548A1
公开(公告)日：2007-03-29
申请号：US11527467
申请日：2006-09-27
IPC分类号： G11B5/82
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/855 , Y10S425/81
摘要： According to one embodiment, a stamper for a magnetic recording media has patterns of protrusions and recesses to manufacture a discrete track recording type magnetic recording media having servo areas including an address portion, a preamble portion and a burst portion, and data areas including a recording track portion, the patterns of protrusions and recesses being formed at a pitch of 400 nm or less, in which a magnitude relation of depths of recesses corresponding to the address portion, the preamble portion, the burst portion and the recording track portion is inverted to a magnitude relation of area ratios of the protrusions to the recesses in the address portion, the preamble portion, the burst portion and the recording track portion.
摘要翻译： 根据一个实施例，用于磁记录介质的压模具有突起和凹槽的图案，以制造具有包括地址部分，前导码部分和突发部分的伺服区域的离散轨道记录型磁记录介质，以及包括记录 轨道部分，以400nm或更小的间距形成的突起和凹陷的图案，其中对应于地址部分，前导码部分，突发部分和记录轨道部分的凹部的深度的大小关系被反转到 在地址部分，前导码部分，突发部分和记录轨道部分中的突起与凹部的面积比的大小关系。
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10.发明授权公开(公告)号：US08372253B2
公开(公告)日：2013-02-12
申请号：US12950235
申请日：2010-11-19
CPC分类号： C25D1/10 , B82Y10/00 , B82Y40/00 , G03F7/0002 , G11B5/82 , G11B5/855 , Y10T428/24612
摘要： According to one embodiment, patterns of protrusions and recesses includes a substrate including a conductive region on at least one major surface, and a projecting pattern layer formed on the conductive region on the major surface, and made of a microcrystalline material, a polycrystalline material, an amorphous material, or an oxide of the microcrystalline, polycrystalline, or amorphous material.
摘要翻译： 根据一个实施例，突起和凹陷的图案包括在至少一个主表面上包括导电区域的基板和形成在主表面上的导电区域上并由微晶材料制成的突出图案层，多晶材料， 非晶材料或微晶，多晶或无定形材料的氧化物。
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