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41. 发明申请

US20100073817A1 PLASMON ANTENNA FOR THERMALLY ASSISTED MAGNETIC HEAD 有权
标题翻译：用于热辅助磁头的PLASMON天线
公开(公告)号：US20100073817A1
公开(公告)日：2010-03-25
申请号：US12237767
申请日：2008-09-25
申请人： Seiichi TAKAYAMA , Eiji KOMURA , Yasuhiro ITO , Kosuke TANAKA , Koji SHIMAZAWA
发明人： Seiichi TAKAYAMA , Eiji KOMURA , Yasuhiro ITO , Kosuke TANAKA , Koji SHIMAZAWA
IPC分类号： G11B5/00
CPC分类号： G11B5/314 , G11B5/4866 , G11B2005/001 , G11B2005/0021
摘要： A plasmon antenna of the present invention is used in a thermally assisted magnetic head that includes: a medium-facing surface set, parallel to an XY plane; a magnetic pole for writing, extending toward the medium-facing surface, and a plasmon antenna comprising a pair of small metal bodies irradiated with excitation light for near-field light generation propagating in a Z-axis direction. Respective corners of the small metal bodies are spaced apart opposite each other along a TE mode direction of the excitation light. A distance between the corners gives the shortest distance between the small metal bodies, and a distance from each corner to the leading end of the magnetic pole gives a shortest distance from the small metal bodies to the leading end.
摘要翻译：本发明的等离子体天线用于热辅助磁头，其包括：平行于XY平面的面向中间的表面组; 用于写入的磁极，朝向介质中的表面延伸;以及等离子体激元，其包括用激励光照射的一对小的金属体，用于沿Z轴方向传播的近场光产生。小金属体的各个角部沿着激发光的TE模式方向相互间隔开。拐角之间的距离给出了小金属体之间的最短距离，从磁极的每个拐角到前端的距离从小金属体到前端都具有最短的距离。

42. 发明申请

US20100053820A1 Magnetoresistive element including a pair of ferromagnetic layers coupled to a pair of shield layers 审中-公开
标题翻译：磁阻元件包括耦合到一对屏蔽层的一对铁磁层
公开(公告)号：US20100053820A1
公开(公告)日：2010-03-04
申请号：US12230604
申请日：2008-09-02
申请人： Daisuke Miyauchi , Yoshihiro Tsuchiya , Tsutomu Chou , Shinji Hara , Takahiko Machita , Koji Shimazawa
发明人： Daisuke Miyauchi , Yoshihiro Tsuchiya , Tsutomu Chou , Shinji Hara , Takahiko Machita , Koji Shimazawa
IPC分类号： G11B5/33
CPC分类号： G11B5/3932 , B82Y10/00 , B82Y25/00 , G01R33/098 , G11B5/3909 , G11B5/3912 , G11B2005/3996 , H01F10/3272 , H01F10/3286
摘要： A magnetoresistive element includes first and second shield layers, an MR stack disposed therebetween, a first hard magnetic layer for setting the magnetization direction of the first shield layer, and a second hard magnetic layer for setting the magnetization direction of the second shield layer. The MR stack includes a first ferromagnetic layer magnetically coupled to the first shield layer, a second ferromagnetic layer magnetically coupled to the second shield layer, and a spacer layer between the first and second ferromagnetic layers. The first and second ferromagnetic layers have magnetizations that are in antiparallel directions when any external magnetic field other than a magnetic field resulting from the first and second hard magnetic layers is not applied to the two ferromagnetic layers, and that change their directions in response to an external magnetic field other than the magnetic field resulting from the first and second hard magnetic layers.
摘要翻译：磁阻元件包括第一和第二屏蔽层，设置在其间的MR堆叠，用于设定第一屏蔽层的磁化方向的第一硬磁性层和用于设定第二屏蔽层的磁化方向的第二硬磁性层。 MR堆叠包括磁耦合到第一屏蔽层的第一铁磁层，与第二屏蔽层磁耦合的第二铁磁层，以及在第一和第二铁磁层之间的间隔层。当由第一和第二硬磁性层产生的磁场以外的任何外部磁场不施加到两个铁磁层时，第一和第二铁磁层具有处于反平行方向的磁化，并且响应于除了由第一和第二硬磁性层产生的磁场以外的外部磁场。

43. 发明授权

US07672092B2 Method for manufacturing magnetic field detecting element, utilizing diffusion of metal 有权
标题翻译：利用金属扩散制造磁场检测元件的方法
公开(公告)号：US07672092B2
公开(公告)日：2010-03-02
申请号：US11708537
申请日：2007-02-21
申请人： Yoshihiro Tsuchiya , Tomohito Mizuno , Kei Hirata , Keita Kawamori , Koji Shimazawa
发明人： Yoshihiro Tsuchiya , Tomohito Mizuno , Kei Hirata , Keita Kawamori , Koji Shimazawa
IPC分类号： G11B5/127
CPC分类号： G11B5/3906 , B82Y25/00 , G01R33/093 , G11B5/3163 , H01L43/12 , Y10T428/1121
摘要： A method for manufacturing a magnetic field detecting element has the steps of: forming stacked layers by sequentially depositing a pinned layer, a spacer layer, a spacer adjoining layer which is adjacent to the spacer layer, a metal layer, and a Heusler alloy layer in this order, such that the layers adjoin each other; and heat treating the stacked layers in order to form the free layer out of the spacer adjoining layer, the metal layer, and the Heusler alloy layer. The spacer adjoining layer is mainly formed of cobalt and iron, and has a body centered cubic structure, and the metal layer is formed of an element selected from the group consisting of silver, gold, copper, palladium, or platinum, or is formed of an alloy thereof.
摘要翻译：一种制造磁场检测元件的方法，其特征在于：通过依次沉积与间隔层相邻的钉扎层，间隔层，间隔物邻接层，金属层和Heusler合金层，形成堆叠层这个顺序，使得这些层彼此相邻; 并且对层叠层进行热处理，以便在间隔物邻接层，金属层和Heusler合金层之间形成自由层。间隔物邻接层主要由钴和铁形成，并且具有体心立方结构，金属层由选自银，金，铜，钯或铂的元素形成，或由其合金。

44. 发明授权

US07672085B2 CPP type magneto-resistive effect device having a semiconductor oxide spacer layer and magnetic disk system 有权
标题翻译：具有半导体氧化物间隔层和磁盘系统的CPP型磁阻效应器件
公开(公告)号：US07672085B2
公开(公告)日：2010-03-02
申请号：US11626562
申请日：2007-01-24
申请人： Shinji Hara , Kei Hirata , Koji Shimazawa , Yoshihiro Tsuchiya , Tomohito Mizuno
发明人： Shinji Hara , Kei Hirata , Koji Shimazawa , Yoshihiro Tsuchiya , Tomohito Mizuno
IPC分类号： G11B5/39
CPC分类号： G11B5/4826 , B82Y10/00 , B82Y25/00 , G11B5/3906 , G11B2005/3996
摘要： The invention provides a giant magneto-resistive effect device (CPP-GMR device) having a CPP (current perpendicular to plane) structure comprising a spacer layer, and a fixed magnetized layer and a free layer stacked one upon another with said spacer layer interleaved between them, with a sense current applied in a stacking direction, wherein the spacer layer comprises a first and a second nonmagnetic metal layer, each formed of a nonmagnetic metal material, and a semiconductor oxide layer interleaved between the first and the second nonmagnetic metal layer, wherein the semiconductor oxide layer that forms a part of the spacer layer is made of indium oxide (In2O3), or the semiconductor oxide layer contains indium oxide (In2O3) as its main component, and an oxide containing a tetravalent cation of SnO2 is contained in the indium oxide that is the main component. The semiconductor oxide layer that forms a part of the spacer layer can thus be made thick while the device has a low area resistivity as desired, ensuring much more favorable advantages: ever higher MR performance, prevention of device area resistivity variations, and much improved reliability of film characteristics.
摘要翻译：本发明提供一种具有CPP（垂直于平面的电流）结构的巨磁阻效应器件（CPP-GMR器件），其包括间隔层，以及固定磁化层和自由层，所述固定磁化层和自由层彼此层叠，它们具有沿层叠方向施加的感测电流，其中间隔层包括由非磁性金属材料形成的第一和第二非磁性金属层和交错在第一和第二非磁性金属层之间的半导体氧化物层，其中形成间隔层的一部分的半导体氧化物层由氧化铟（In 2 O 3）制成，或者半导体氧化物层包含氧化铟（In 2 O 3）作为其主要成分，并且包含含有SnO 4的四价阳离子的氧化物作为主要成分的氧化铟。因此，形成间隔层的一部分的半导体氧化物层可以制成厚度，同时器件根据需要具有低的面积电阻率，确保更有利的优点：越来越高的MR性能，防止器件面积电阻率变化和大大提高的可靠性的电影特色。

45. 发明申请

US20100046331A1 PLANER PLASMON ANTENNA, THERMALLY ASSISTED MAGNETIC HEAD AND HARD DISK DRIVE 有权
标题翻译： PLANER PLASMON天线，热辅助磁头和硬盘驱动器
公开(公告)号：US20100046331A1
公开(公告)日：2010-02-25
申请号：US12194798
申请日：2008-08-20
申请人： Seiichi TAKAYAMA , Koji SHIMAZAWA
发明人： Seiichi TAKAYAMA , Koji SHIMAZAWA
IPC分类号： G11B11/00 , G21G4/00
CPC分类号： G11B5/314 , G11B5/4866 , G11B7/1387 , G11B2005/001 , G11B2005/0021
摘要： A planar plasmon antenna is formed on a YZ plane including a Z-axis, the Z-axis being a propagation direction of excitation light for near-field light generation. The longitudinal direction of the planar plasmon antenna is oblique relative to the Y-axis, and the angle of a corner of the planar plasmon antenna in the YZ plane is an acute angle. The corner, which forms an acute angle, generates intense near-field light in response to excitation light irradiation.
摘要翻译：平面等离子体激元天线形成在包括Z轴的YZ平面上，Z轴是用于近场光产生的激发光的传播方向。平面等离子体激元的纵向相对于Y轴倾斜，YZ平面中的平面等离子体天线的角度为锐角。形成锐角的角部响应于激发光照射产生强烈的近场光。

46. 发明授权

US07663845B2 Current-perpendicular-to-plane magneto-resistive element including multilayer lower magnetic shielding film 有权
标题翻译：电流 - 垂直于平面的磁阻元件包括多层下磁屏蔽膜
公开(公告)号：US07663845B2
公开(公告)日：2010-02-16
申请号：US11616503
申请日：2006-12-27
申请人： Kei Hirata , Koji Shimazawa , Atsushi Yamaguchi , Kiyoshi Noguchi
发明人： Kei Hirata , Koji Shimazawa , Atsushi Yamaguchi , Kiyoshi Noguchi
IPC分类号： G11B5/11 , G11B5/39
CPC分类号： G11B5/3912
摘要： A current-perpendicular-to-plane magneto-resistive element includes a magneto-resistive film and a pair of upper and lower magnetic shielding films holding the magneto-resistive film therebetween for current feeding. The lower magnetic shielding film has an at least two-layer structure including a crystalline material layer and an amorphous material layer disposed below the crystalline material layer.
摘要翻译：电流 - 垂直于平面的磁阻元件包括磁阻膜和一对上下磁屏蔽膜，其在其间保持用于电流馈送的磁阻膜。下磁屏蔽膜具有至少两层结构，包括结晶材料层和设置在结晶材料层下方的无定形材料层。

47. 发明申请

US20100020431A1 HEAT-ASSISTED THIN-FILM MAGNETIC HEAD AND HEAT-ASSISTED MAGNETIC RECORDING METHOD 有权
标题翻译：热辅助薄膜磁头和热辅助磁记录方法
公开(公告)号：US20100020431A1
公开(公告)日：2010-01-28
申请号：US12177501
申请日：2008-07-22
申请人： Koji SHIMAZAWA , Daisuke MIYAUCHI , Katsuki KURIHARA
发明人： Koji SHIMAZAWA , Daisuke MIYAUCHI , Katsuki KURIHARA
IPC分类号： G11B5/02 , G11B5/33 , G11B5/48
CPC分类号： G11B5/314 , G11B5/4866 , G11B2005/0005 , G11B2005/0021
摘要： In a heat-assisted magnetic recording, a thin-film magnetic head, which can form stable recording bits pattern having steep magnetization transition regions without using a near-field light generating element, is provided. The head is formed on an element forming surface of a substrate, and has a waveguide for leading a light for heat-assist to a magnetic medium and a write element formed on a trailing side of the waveguide and having a magnetic pole for applying a write field to the medium. Here, a write field profile, which is an intensity distribution of the write field from the pole along a track in a recoding layer of the medium, has a projecting region on a leading side. Further, an anisotropy field profile, which is a distribution of an anisotropy field when the anisotropy field is reduced by irradiating the light on a part of the recoding layer, traverses the projecting region.
摘要翻译：在热辅助磁记录中，提供了可以形成具有陡峭的磁化转变区而不使用近场光产生元件的稳定记录位图形的薄膜磁头。头形成在基板的元件形成表面上，并且具有用于将用于将热辅助的光引导到磁介质的波导和形成在波导的后侧的写入元件，并且具有用于施加写入的磁极领域到媒介。这里，作为介质的记录层中的沿着磁道的磁极的写入场的强度分布的写场分布在前端具有突出区域。此外，当通过在记录层的一部分照射光而减小各向异性场时的各向异性场的分布的各向异性场分布横穿该突出区域。

48. 发明申请

US20090201612A1 Magnetoresistive device of the CPP type, and magnetic disk system 有权
标题翻译： CPP型磁阻器和磁盘系统
公开(公告)号：US20090201612A1
公开(公告)日：2009-08-13
申请号：US12028243
申请日：2008-02-08
申请人： Koji SHIMAZAWA , Tsutomu Chou , Daisuke Miyauchi
发明人： Koji SHIMAZAWA , Tsutomu Chou , Daisuke Miyauchi
IPC分类号： G11B5/33 , H01L43/08
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3912 , G11B5/398 , G11B2005/3996 , H01L43/08
摘要： The invention provides a magnetoresistive device of the CPP (current perpendicular to plane) structure, comprising a magnetoresistive unit, and a first shield layer and a second shield layer which are located and formed such that the magnetoresistive unit is sandwiched between them from above and below, with a sense current applied in the stacking direction, wherein said magnetoresistive unit comprises a non-magnetic intermediate layer, and a first ferromagnetic layer and a second ferromagnetic layer stacked and formed such that said nonmagnetic intermediate layer is sandwiched between them.
摘要翻译：本发明提供了CPP（电流垂直于平面）结构的磁阻器件，包括磁阻单元，以及第一屏蔽层和第二屏蔽层，它们被定位和形成，使得磁阻单元从上方和下方夹在它们之间，其中所述磁阻单元包括非磁性中间层，并且堆叠并形成第一铁磁层和第二铁磁层，使得所述非磁性中间层夹在它们之间。

49. 发明申请

US20090188891A1 METHOD OF MANUFACTURING THERMALLY ASSISTED MAGNETIC HEAD 有权
标题翻译：制造热辅助磁头的方法
公开(公告)号：US20090188891A1
公开(公告)日：2009-07-30
申请号：US12359508
申请日：2009-01-26
申请人： Kosuke TANAKA , Koji SHIMAZAWA
发明人： Kosuke TANAKA , Koji SHIMAZAWA
IPC分类号： B44C1/22
CPC分类号： G11B5/314 , G11B5/3163 , G11B2005/0021
摘要： A method comprises a first multilayer body forming step of forming a first multilayer body on a first cladding layer, the first multilayer body including a core layer and a first polishing stop layer in order from the first cladding layer side; a first multilayer body patterning step of pattering the first multilayer body, so as to expose the first cladding layer about the patterned first multilayer body; a second multilayer body forming step of forming a second multilayer body on the exposed first cladding layer and patterned first multilayer body, the second multilayer body including a second cladding layer and a second polishing stop layer in order from the first cladding layer side; and a removing step of polishing away a part of the second multilayer body formed on the first multilayer body.
摘要翻译：一种方法包括：在第一包层上形成第一多层体的第一多层体形成步骤，所述第一层叠体包含从所述第一包层侧起的顺序的芯层和第一研磨停止层; 图案化第一多层体的第一多层体图案形成工序，使第一包层围绕图案化的第一多层体露出; 第二多层体形成步骤，在所述第一包覆层和所述第一层叠体上形成第二层叠体，所述第二层叠体包含第二覆层和所述第二覆层; 以及去除在第一多层体上形成的第二层叠体的一部分的除去工序。

50. 发明申请

US20090168220A1 THERMALLY ASSISTED MAGNETIC HEAD AND MANUFACTURING METHOD OF SAME 有权
标题翻译：热辅助磁头及其制造方法
公开(公告)号：US20090168220A1
公开(公告)日：2009-07-02
申请号：US12204452
申请日：2008-09-04
申请人： Eiji Komura , Koji Shimazawa , Kosuke Tanaka , Seiichi Takayama , Hitoshi Hatate
发明人： Eiji Komura , Koji Shimazawa , Kosuke Tanaka , Seiichi Takayama , Hitoshi Hatate
IPC分类号： G11B5/02 , B44C1/22
CPC分类号： G11B5/314 , G11B2005/0021
摘要： When first and second near-field light-generating portions are irradiated with laser light or other energy rays, near-field light is generated at the tips of both the near-field light-generating portions. By means of the near-field light thus generated, a magnetic recording medium opposing the medium-opposing surface is heated, and the coercivity of the magnetic recording medium is lowered. Since at least a portion of the main magnetic pole is positioned within the spot region including the region between the first and second near-field light-generating portions, the tips of both the near-field light-generating portions and the main magnetic pole can be brought extremely close together, and high-density recording can be performed.
摘要翻译：当用激光或其他能量射线照射第一和第二近场光产生部分时，在近场光产生部分的尖端处产生近场光。通过这样产生的近场光，加热与介质相对表面相对的磁记录介质，并降低磁记录介质的矫顽力。由于主磁极的至少一部分位于包括第一和第二近场发光部之间的区域的光点区域内，因此近场发光部和主磁极两者的尖端被非常靠近在一起，并且可以执行高密度记录。

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