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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：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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公开(公告)号：US20110235212A1
公开(公告)日：2011-09-29
申请号：US13007395
申请日：2011-01-14
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/855 , Y10T428/12465
摘要： According to one embodiment, a method of manufacturing a magnetic recording medium includes forming on a magnetic recording layer a first hard mask, a second hard mask, a third hard mask and a resist, imprinting the resist with a stamper, removing a residue left in the recesses of the patterned resist, etching the third hard mask by use of the patterned resist as a mask, etching the second hard mask by use of the third hard mask as a mask, etching the first hard mask by use of the second hard mask as a mask, forming a pattern of the magnetic recording layer with ion beam irradiation, and removing the first hard mask by use of a remover liquid with higher reactivity to the metal material of the first hard mask than to a constituent element of the magnetic recording layer.
摘要翻译： 根据一个实施例，制造磁记录介质的方法包括在磁记录层上形成第一硬掩模，第二硬掩模，第三硬掩模和抗蚀剂，用压模压印抗蚀剂，除去留在 图案化抗蚀剂的凹部，通过使用图案化的抗蚀剂作为掩模蚀刻第三硬掩模，通过使用第三硬掩模作为掩模蚀刻第二硬掩模，通过使用第二硬掩模蚀刻第一硬掩模 作为掩模，通过离子束照射形成磁记录层的图案，并且通过使用对第一硬掩模的金属材料具有较高反应性的去除剂液体除去第一硬掩模，而不是磁记录的构成元件 层。
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公开(公告)号：US07993536B2
公开(公告)日：2011-08-09
申请号：US12636610
申请日：2009-12-11
IPC分类号： B44C1/22
摘要： According to one embodiment, a method of manufacturing a magnetic recording medium includes forming a first hard mask, a second hard mask and a resist film on a magnetic recording layer, imprinting a stamper on the resist film to transfer patterns of recesses and protrusions, removing residues remained in recess of the patterned resist film, etching the second hard mask using the patterned resist film as a mask to transfer patterns of recesses and protrusions, etching the first hard mask using the patterned second hard mask as a mask to transfer patterns of recesses and protrusions, and deactivating magnetism of the magnetic recording layer exposed in the recesses together with removing the second hard mask by ion-beam etching.
摘要翻译： 根据一个实施例，制造磁记录介质的方法包括在磁记录层上形成第一硬掩模，第二硬掩模和抗蚀剂膜，在抗蚀剂膜上压印印模以转印凹凸图案，去除 残留物保留在图案化抗蚀剂膜的凹部中，使用图案化的抗蚀剂膜作为掩模蚀刻第二硬掩模以转移凹凸和突起的图案，使用图案化的第二硬掩模作为掩模蚀刻第一硬掩模以转移凹槽的图案 和突起，并且通过离子束蚀刻去除第二硬掩模，使暴露于凹部中的磁记录层的磁性失活。
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54.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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55.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：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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57.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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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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59.发明授权公开(公告)号：US09012046B2
公开(公告)日：2015-04-21
申请号：US13294130
申请日：2011-11-10
CPC分类号： G11B5/855 , G11B5/7325
摘要： According to one embodiment, a magnetic recording medium is formed by performing gas ion irradiation by using a magnetism deactivating gas on a stack including a perpendicular magnetic recording layer, an Ru nonmagnetic underlayer containing a magnetism deactivating element selected from chromium, titanium, and silicon, and a nonmagnetic substrate. Before gas ion irradiation, the perpendicular magnetic recording layer contains platinum and at least one of iron and cobalt. Gas ion irradiation is performed using nitrogen gas alone or a gas mixture of nitrogen gas and at least one gas selected from the group consisting of helium, hydrogen, and B2H6.
摘要翻译： 根据一个实施例，通过在包括垂直磁记录层，含有选自铬，钛和硅的磁性去活化元素的Ru非磁性底层的堆叠上使用磁性去活化气体进行气体离子照射来形成磁记录介质， 和非磁性基板。 在气体离子照射之前，垂直磁记录层含有铂和至少一种铁和钴。 使用单独的氮气或氮气和选自由氦，氢和B2H6组成的组中的至少一种气体的气体混合物进行气体离子照射。
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60.发明申请公开(公告)号：US20120052328A1
公开(公告)日：2012-03-01
申请号：US13166718
申请日：2011-06-22
CPC分类号： B44C1/22 , G11B5/746 , G11B5/855 , Y10T428/11
摘要： According to one embodiment, a method of manufacturing a patterned medium includes forming an implantation depth-adjusting layer above a magnetic recording layer, the magnetic recording layer being made of a material that is deactivated when implanted with a chemical species, and the implantation depth-adjusting layer being made of a material that is etched when irradiated with an ion beam of the chemical species and irradiating the implantation depth-adjusting layer with the ion beam to implant the chemical species into a part of the magnetic recording layer through the implantation depth-adjusting layer while etching the implantation depth-adjusting layer by an action of the ion beam to decrease a thickness of the implantation depth-adjusting laver.
摘要翻译： 根据一个实施例，制造图案化介质的方法包括在磁记录层上形成注入深度调节层，所述磁记录层由在注入化学物质时失活的材料制成， 所述调整层由当被所述化学物质的离子束照射时被蚀刻的材料制成，并且用所述离子束照射所述注入深度调节层，以通过所述植入深度调制层将所述化学物质注入到所述磁记录层的一部分中， 同时通过离子束的作用蚀刻植入深度调节层，以减小植入深度调节紫菜的厚度。
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