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1. 发明申请

US20150310885A1 PATTERN FORMING METHOD AND MANUFACTURING METHOD OF MAGNETIC RECORDING MEDIUM 有权
标题翻译：磁记录介质的图案形成方法和制造方法
公开(公告)号：US20150310885A1
公开(公告)日：2015-10-29
申请号：US14455058
申请日：2014-08-08
申请人： Kabushiki Kaisha Toshiba
发明人： Kaori Kimura , Akira Fujimoto , Akira Watanabe
IPC分类号： G11B5/84 , G11B5/855
CPC分类号： G11B5/855
摘要： According to one embodiment, disclosed is a pattern forming method including preparing a second dispersion by adding a second protective group and second solvent to fine particles including a first protective group whose surface polarity is close to that of the substrate, the fine particles containing, at least on the surface thereof, a material selected from Al, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Y, Zr, Sn, Mo, Ta, W, Au, Ag, Pd, Cu, Pt, and an oxide thereof, modifying the fine particles including the first protective group with the second protective group, adding a viscosity adjustment agent to the dispersion containing the fine particles to prepare a coating solution, and applying the coating solution on the substrate to form a fine particle layer thereon.
摘要翻译：根据一个实施方案，公开了一种图案形成方法，包括通过向其表面极性接近于底物的第一保护基的细颗粒添加第二保护基和第二溶剂来制备第二分散体，所述第一保护基的微粒含有最少在其表面上选自Al，Ti，V，Cr，Mn，Fe，Co，Ni，Zn，Y，Zr，Sn，Mo，Ta，W，Au，Ag，Pd，Cu，Pt，和其氧化物，用第二保护基改性包括第一保护基的细颗粒，向含有微粒的分散体中加入粘度调节剂以制备涂布溶液，并将涂布溶液涂布在基材上以形成微细颗粒层。

2. 发明申请

US20150004438A1 METHOD FOR FORMING PATTERN, METHOD FOR PRODUCING MAGNETIC RECORDING MEDIUM USING THE SAME, MAGNETIC RECORDING MEDIUM, AND METHOD FOR PRODUCING STAMPER 有权
标题翻译：用于形成图案的方法，使用其制造磁记录介质的方法，磁记录介质以及用于生产印章的方法
公开(公告)号：US20150004438A1
公开(公告)日：2015-01-01
申请号：US14060247
申请日：2013-10-22
申请人： Kabushiki Kaisha Toshiba
发明人： Kazutaka Takizawa , Akira Watanabe , Kaori Kimura , Takeshi Iwasaki , Akihiko Takeo
IPC分类号： G11B5/851 , G11B5/74
CPC分类号： G11B5/746 , G11B5/855 , G11B5/865
摘要： According to one embodiment, there is provided a method for forming a pattern including forming an island-like metal underlayer comprised of a first metal, a phase-separated release layer including a first metal, a second metal, and a metal oxide, a mask layer, and a resist layer on a processed layer in this order, forming a concave-convex pattern on the resist layer, transferring the pattern to the mask layer, the phase-separated release layer, and the processed layer in this order, dissolving the phase-separated release layer using a peeling liquid for dissolving the first metal and the second metal, and removing the mask layer from the processed layer to expose the concave-convex pattern.
摘要翻译：根据一个实施方案，提供一种用于形成图案的方法，包括形成由第一金属，包含第一金属，第二金属和金属氧化物的相分离释放层构成的岛状金属底层，掩模层和加工层上的抗蚀剂层，在抗蚀剂层上形成凹凸图案，依次将图案转印到掩模层，相分离层和处理层，将使用用于溶解第一金属和第二金属的剥离液的相分离剥离层，以及从处理层去除掩模层以露出凹凸图案。

3. 发明申请

US20130295299A1 MAGNETIC RECORDING MEDIUM AND MANUFACTURING METHOD THEREOF 审中-公开
标题翻译：磁记录介质及其制造方法
公开(公告)号：US20130295299A1
公开(公告)日：2013-11-07
申请号：US13934164
申请日：2013-07-02
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Takeshi Iwasaki , Kaori Kimura , Yoshiyuki Kamata , Masatoshi Sakurai
IPC分类号： G11B5/84
CPC分类号： G11B5/8404 , G11B5/746 , G11B5/82 , G11B5/855 , Y10T428/11
摘要： According to one embodiment, a magnetic recording medium includes a substrate, a soft magnetic layer, an underlayer, a magnetic recording layer, and a protective layer, wherein the magnetic recording layer is provided with a pattern including recording portions and non-recording portions, the non-recording portions have a composition that is equal to a composition obtained by demagnetizing the recording portions, the non-recording portions contain at least one metal element selected from the group consisting of vanadium and zirconium and at least one element selected from the group consisting of nitrogen, carbon, boron and oxygen, and the at least one element selected from the group consisting of nitrogen, carbon, boron and oxygen is contained in the non-recording portions at a higher content than the content of the at least one element selected from the group consisting of nitrogen, carbon, boron and oxygen in the recording portions.
摘要翻译：根据一个实施例，磁记录介质包括衬底，软磁层，底层，磁记录层和保护层，其中磁记录层设置有包括记录部分和非记录部分的图案，非记录部分的组成等于通过使记录部分退磁获得的组合物，非记录部分含有至少一种选自钒和锆的金属元素和至少一种选自组中的元素由氮，碳，硼和氧组成，并且所述至少一种选自氮，碳，硼和氧的元素以比所述至少一种元素的含量更高的含量包含在非记录部分中在记录部分中选自氮，碳，硼和氧。

4. 发明授权

US09911448B2 Perpendicular magnetic recording medium, method of manufacturing the same, and magnetic recording/reproduction apparatus 有权
公开(公告)号：US09911448B2
公开(公告)日：2018-03-06
申请号：US15070733
申请日：2016-03-15
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Takeshi Iwasaki , Kazutaka Takizawa , Akira Watanabe , Kaori Kimura , Akihiko Takeo
IPC分类号： G11B5/84 , G11B5/855 , G11B5/65
CPC分类号： G11B5/84 , G11B5/65 , G11B5/855
摘要： A perpendicular magnetic recording medium according to an embodiment includes a substrate and perpendicular magnetic recording layer. The perpendicular magnetic recording layer includes a recording portion and non-recording portion. The recording portion has patterns regularly arranged in the longitudinal direction, and includes magnetic layers containing Fe or Co and Pt as main components, and at least one additive component selected from Ti, Si, Al, and W. The non-recording portion includes oxide layers formed by oxidizing the side surfaces of the magnetic layers, and nonmagnetic layers formed between the oxide layers.

5. 发明申请

US20170004855A1 PERPENDICULAR MAGNETIC RECORDING MEDIUM 审中-公开
标题翻译：全能磁记录介质
公开(公告)号：US20170004855A1
公开(公告)日：2017-01-05
申请号：US14840550
申请日：2015-08-31
申请人： Kabushiki Kaisha Toshiba
发明人： Kaori Kimura , Soichi Oikawa
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/855
摘要： According to one embodiment, a perpendicular magnetic recording medium includes an underlying layer with convexes arranged with 1 to 20 nm intervals, and a multilayered amorphous magnetic recording layer formed on the underlying layer. The multilayered amorphous magnetic recording layer includes a first amorphous magnetic recording layer with a plurality of magnetic grains each formed on a corresponding convex to be widened toward its tip and being separated from each other at least in the convex side, a nonmagnetic protective layer covering at least a part of a sidewall of the magnetic particle, and a second amorphous magnetic recording layer formed on the nonmagnetic protective layer.
摘要翻译：根据一个实施例，垂直磁记录介质包括具有以1至20nm间隔布置的凸起的下层，以及形成在下层上的多层非晶磁记录层。多层非晶磁记录层包括具有多个磁性颗粒的第一非晶磁性记录层，每个磁性颗粒各自形成在相应的凸起上，以朝向其顶端加宽并且至少在凸起侧彼此分离，非磁性保护层覆盖在磁性颗粒的侧壁的至少一部分和形成在非磁性保护层上的第二非晶磁记录层。

6. 发明申请

US20150154996A1 PERPENDICULAR MAGNETIC RECORDING MEDIUM 有权
标题翻译：全能磁记录介质
公开(公告)号：US20150154996A1
公开(公告)日：2015-06-04
申请号：US14193239
申请日：2014-02-28
申请人： Kabushiki Kaisha Toshiba
发明人： Akira WATANABE , Takeshi Iwasaki , Kazutaka Takizawa , Kaori Kimura
IPC分类号： G11B5/73 , G11B5/851
CPC分类号： G11B5/7325 , G11B5/732 , G11B5/8404 , G11B5/851
摘要： According to one embodiment, a perpendicular magnetic recording medium is provided, which includes a non-magnetic granular underlayer formed on a substrate and containing metal grains of a first metal and a grain boundary layer surrounding the metal grains, each metal grain including a projection projecting from the boundary layer and a bottom portion embedded in the grain boundary layer, and a contact angle of the edge of the projection to the surface of the grain boundary layer being 45° to 85°, a non-magnetic intermediate layer formed on a surface of each projection and a magnetic recording layer having a projection pattern formed on the basis of a pattern of the projections in the non-magnetic intermediate layer via the non-magnetic intermediate layer.
摘要翻译：根据一个实施例，提供了一种垂直磁记录介质，其包括形成在基板上的非磁性颗粒状底层，并且包含围绕金属颗粒的第一金属和晶界层的金属颗粒，每个金属颗粒包括突起从所述边界层和嵌入在所述晶界层中的底部，所述突起的边缘与所述晶界层的表面的接触角为45°〜85°，形成在所述表面上的非磁性中间层和具有通过非磁性中间层在非磁性中间层中基于突起图案形成的突起图案的磁记录层。

7. 发明授权

US08995089B2 Magnetic recording medium and method for producing the same 有权
标题翻译：磁记录介质及其制造方法
公开(公告)号：US08995089B2
公开(公告)日：2015-03-31
申请号：US13944645
申请日：2013-07-17
申请人： Kabushiki Kaisha Toshiba
发明人： Kazutaka Takizawa , Akira Watanabe , Kaori Kimura , Tsuyoshi Onitsuka , Takeshi Iwasaki , Masahiro Takashita , Akihiko Takeo
IPC分类号： G11B5/65 , G11B5/72 , G11B5/855
CPC分类号： G11B5/72 , G11B5/855
摘要： According to one embodiment, there is provided a magnetic recording medium which includes a base, a magnetic recording layer having convex-shaped magnetic layers, which is formed on the base, and a protective film formed on the magnetic recording layer. There are gaps in a region surrounded by the protective film, the surface of the base, and each side wall of each magnetic layer.
摘要翻译：根据一个实施例，提供一种磁记录介质，其包括基底，形成在基底上的具有凸形磁性层的磁记录层和形成在磁记录层上的保护膜。在由保护膜，基底的表面和每个磁性层的每个侧壁包围的区域中存在间隙。

8. 发明授权

US10854222B2 Magnetic recording and reproducing device having a magnetic recording head including a magnetic flux control layer between a main magnetic pole and an auxiliary magnetic pole 有权
公开(公告)号：US10854222B2
公开(公告)日：2020-12-01
申请号：US16266166
申请日：2019-02-04
申请人： Kabushiki Kaisha Toshiba , Toshiba Electronic Devices & Storage Corporation
发明人： Yusuke Tomoda , Kaori Kimura , Akihiko Takeo
IPC分类号： G11B5/187 , G11B5/09 , G11B5/60 , G11B5/255 , G11B5/31
摘要： According to one embodiment, a magnetic recording and reproducing device includes a magnetic flux control layer provided between a main magnetic pole and an auxiliary magnetic pole, and a protective layer provided on an ABS of the auxiliary magnetic pole. The magnetic flux control layer includes an adjustment layer formed of a magnetic material including one of Fe, Co or Ni and is provided between a first conductive layer and a second conductive layer, and generates a spin torque and inverts a direction of magnetization in the adjustment layer, when current is supplied. A voltage Vb applied to the magnetic flux control layer is lower than a voltage Vba represented by an expression (1), Vba=Vb0−a×1/log(t)×log(RH)×log(PO2).

9. 发明授权

US09412405B2 Pattern forming method and manufacturing method of magnetic recording medium 有权
标题翻译：磁记录介质的图案形成方法和制造方法
公开(公告)号：US09412405B2
公开(公告)日：2016-08-09
申请号：US14455058
申请日：2014-08-08
申请人： Kabushiki Kaisha Toshiba
发明人： Kaori Kimura , Akira Fujimoto , Akira Watanabe
IPC分类号： G11B5/84 , G11B5/855
CPC分类号： G11B5/855
摘要： According to one embodiment, disclosed is a pattern forming method including preparing a second dispersion by adding a second protective group and second solvent to fine particles including a first protective group whose surface polarity is close to that of the substrate, the fine particles containing, at least on the surface thereof, a material selected from Al, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Y, Zr, Sn, Mo, Ta, W, Au, Ag, Pd, Cu, Pt, and an oxide thereof, modifying the fine particles including the first protective group with the second protective group, adding a viscosity adjustment agent to the dispersion containing the fine particles to prepare a coating solution, and applying the coating solution on the substrate to form a fine particle layer thereon.
摘要翻译：根据一个实施方案，公开了一种图案形成方法，包括通过向其表面极性接近于底物的第一保护基的细颗粒添加第二保护基和第二溶剂来制备第二分散体，所述第一保护基的微粒含有最少在其表面上选自Al，Ti，V，Cr，Mn，Fe，Co，Ni，Zn，Y，Zr，Sn，Mo，Ta，W，Au，Ag，Pd，Cu，Pt，和其氧化物，用第二保护基改性包括第一保护基的细颗粒，向含有微粒的分散体中加入粘度调节剂以制备涂布溶液，并将涂布溶液涂布在基材上以形成微细颗粒层。

10. 发明授权

US09368143B2 Method for forming pattern, method for producing magnetic recording medium using the same, magnetic recording medium, and method for producing stamper 有权
标题翻译：用于形成图案的方法，使用该方法的磁记录介质的制造方法，磁记录介质和用于制造压模的方法
公开(公告)号：US09368143B2
公开(公告)日：2016-06-14
申请号：US14060247
申请日：2013-10-22
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kazutaka Takizawa , Akira Watanabe , Kaori Kimura , Takeshi Iwasaki , Akihiko Takeo
IPC分类号： G11B5/74 , G11B5/855 , G11B5/86
CPC分类号： G11B5/746 , G11B5/855 , G11B5/865
摘要： According to one embodiment, there is provided a method for forming a pattern including forming an island-like metal underlayer comprised of a first metal, a phase-separated release layer including a first metal, a second metal, and a metal oxide, a mask layer, and a resist layer on a processed layer in this order, forming a concave-convex pattern on the resist layer, transferring the pattern to the mask layer, the phase-separated release layer, and the processed layer in this order, dissolving the phase-separated release layer using a peeling liquid for dissolving the first metal and the second metal, and removing the mask layer from the processed layer to expose the concave-convex pattern.
摘要翻译：根据一个实施方案，提供一种用于形成图案的方法，包括形成由第一金属，包含第一金属，第二金属和金属氧化物的相分离释放层构成的岛状金属底层，掩模层和加工层上的抗蚀剂层，在抗蚀剂层上形成凹凸图案，依次将图案转印到掩模层，相分离层和处理层，将使用用于溶解第一金属和第二金属的剥离液的相分离剥离层，以及从处理层去除掩模层以露出凹凸图案。

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