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1. 发明申请

US20120147502A1 MAGNETIC RECORDING HEAD, METHOD OF MANUFACTURING THE SAME, AND MAGNETIC DISK UNIT 失效
标题翻译：磁记录头，其制造方法和磁盘单元
公开(公告)号：US20120147502A1
公开(公告)日：2012-06-14
申请号：US13312413
申请日：2011-12-06
申请人： Yuta Udo , Mikito Sugiyama , Masato Shiimoto , Nobuo Yoshida , Kenji Sugiura , Masashi Hattori
发明人： Yuta Udo , Mikito Sugiyama , Masato Shiimoto , Nobuo Yoshida , Kenji Sugiura , Masashi Hattori
IPC分类号： G11B5/127
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/314 , G11B2005/0024
摘要： Minute elements are formed while a photo deviation is suppressed between a spin torque oscillator and a main pole and damage is prevented on the ends of the spin torque oscillator in microwave-assisted recording. A magnetic recording head used for microwave-assisted recording includes: a main pole; a spin torque oscillator that is disposed on the main pole and includes a magnetization high-speed rotation layer for rotating magnetization at a high speed by a spin torque; a protective film that is disposed in the track width direction of the spin torque oscillator; an insulating film formed over the wall surfaces of the main pole and the wall surfaces of the protective film; and a magnetic film formed on the insulating film so as to cover at least the main pole.
摘要翻译：在微波辅助记录中，在自旋转矩振荡器和主极之间抑制光偏移并且在自旋扭矩振荡器的端部上的损伤被防止时形成分钟元件。用于微波辅助记录的磁记录头包括：主极; 旋转扭矩振荡器，其设置在所述主极上并且包括用于通过自旋转矩高速旋转磁化的磁化高速旋转层; 保护膜，其设置在所述自旋扭矩振子的轨道宽度方向上; 绝缘膜形成在主极的壁表面和保护膜的壁表面上; 以及形成在所述绝缘膜上以至少覆盖所述主极的磁性膜。

2. 发明授权

US08520338B2 Magnetic recording head, method of manufacturing the same, and magnetic disk unit 失效
标题翻译：磁记录头，制造方法和磁盘单元
公开(公告)号：US08520338B2
公开(公告)日：2013-08-27
申请号：US13312413
申请日：2011-12-06
申请人： Yuta Udo , Mikito Sugiyama , Masato Shiimoto , Nobuo Yoshida , Kenji Sugiura , Masashi Hattori
发明人： Yuta Udo , Mikito Sugiyama , Masato Shiimoto , Nobuo Yoshida , Kenji Sugiura , Masashi Hattori
IPC分类号： G11B5/127 , G11B5/187
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/314 , G11B2005/0024
摘要： Minute elements are formed while a photo deviation is suppressed between a spin torque oscillator and a main pole and damage is prevented on the ends of the spin torque oscillator in microwave-assisted recording. A magnetic recording head used for microwave-assisted recording includes: a main pole; a spin torque oscillator that is disposed on the main pole and includes a magnetization high-speed rotation layer for rotating magnetization at a high speed by a spin torque; a protective film that is disposed in the track width direction of the spin torque oscillator; an insulating film formed over the wall surfaces of the main pole and the wall surfaces of the protective film; and a magnetic film formed on the insulating film so as to cover at least the main pole.
摘要翻译：在微波辅助记录中，在自旋转矩振荡器和主极之间抑制光偏移并且在自旋扭矩振荡器的端部上的损伤被防止时形成分钟元件。用于微波辅助记录的磁记录头包括：主极; 旋转扭矩振荡器，其设置在所述主极上并且包括用于通过自旋转矩高速旋转磁化的磁化高速旋转层; 保护膜，其设置在所述自旋扭矩振子的轨道宽度方向上; 绝缘膜形成在主极的壁表面和保护膜的壁表面上; 以及形成在所述绝缘膜上以至少覆盖所述主极的磁性膜。

3. 发明授权

US08824103B2 Magnetic recording head and magnetic recording apparatus 有权
标题翻译：磁记录头和磁记录装置
公开(公告)号：US08824103B2
公开(公告)日：2014-09-02
申请号：US13404029
申请日：2012-02-24
申请人： Masato Shiimoto , Kenji Sugiura , Mikito Sugiyama , Isao Nunokawa , Yo Sato , Katsuro Watanabe , Kazuhiko Hosomi , Nobuo Yoshida
发明人： Masato Shiimoto , Kenji Sugiura , Mikito Sugiyama , Isao Nunokawa , Yo Sato , Katsuro Watanabe , Kazuhiko Hosomi , Nobuo Yoshida
IPC分类号： G11B5/127 , G11B5/35 , G11B5/235
CPC分类号： G11B5/314 , G11B2005/0024
摘要： The strength of a magnetic field applied from a main pole to an oscillator and the strength of a magnetic field applied from the main pole to a recording medium are improved in a magnetic recording head for microwave assisted recording. In the magnetic recording head according to the present invention, an interval between the main pole and a trailing shield at a place in a position above an air bearing surface is larger than an interval between the main pole and the trailing shield on the air bearing surface.
摘要翻译：用于微波辅助记录的磁记录头改善了从主极施加到振荡器的磁场的强度和从主极施加到记录介质的磁场的强度。在根据本发明的磁记录头中，在空气轴承表面上方的位置处的主极和后挡板之间的间隔大于空气轴承表面上的主极和后挡板之间的间隔。

4. 发明申请

US20120113543A1 MAGNETIC HEAD AND MAGNETIC RECORDING/REPRODUCTION APPARATUS USING THE SAME 审中-公开
标题翻译：磁头和磁记录/再现装置
公开(公告)号：US20120113543A1
公开(公告)日：2012-05-10
申请号：US13291580
申请日：2011-11-08
申请人： Masato Shiimoto , Mikito Sugiyama
发明人： Masato Shiimoto , Mikito Sugiyama
IPC分类号： G11B5/17 , G11B21/02
CPC分类号： G11B5/127 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B2005/0024
摘要： A magnetic recording head enabling both enhancement of a strength of a magnetic field from a main pole and provision of narrow-track recording to achieve a high recording density in a high-frequency magnetic field-assisted recording method is provided. An oscillator 110 that generates a high-frequency magnetic field is provided on the trailing side of a main pole 120, and viewed from the air bearing surface side, a ratio Pw/Two between a track width Pw of a trailing-side edge portion of the main pole and a track width Two of a leading-side edge portion of the oscillator is no less than 0.85 and no more than 1.25, and the main pole includes a part having a track width larger than Pw between the trailing-side edge portion and a leading-side edge portion of the main pole.
摘要翻译：提供一种能够提高来自主极的磁场强度并提供窄轨记录以在高频磁场辅助记录方法中实现高记录密度的磁记录头。在主极120的后侧设置有产生高频磁场的振荡器110，从空气轴承面侧观察后方侧缘部的轨道宽度Pw与Pw / 主极和轨道宽度振荡器的前侧边缘部分中的两个不小于0.85且不大于1.25，并且主极包括轨道宽度大于后侧边缘部分之间的Pw的部分和主极的前端侧部分。

5. 发明授权

US08941948B2 Perpendicular recording head with leading bump in the main pole having narrow leading gap (LG) 有权
标题翻译：垂直记录头与主极中的引导凸起具有窄的前导间隙（LG）
公开(公告)号：US08941948B2
公开(公告)日：2015-01-27
申请号：US13526418
申请日：2012-06-18
申请人： Kimitoshi Etoh , Mikito Sugiyama , Hisashi Kimura , Kazuhiko Hosomi
发明人： Kimitoshi Etoh , Mikito Sugiyama , Hisashi Kimura , Kazuhiko Hosomi
IPC分类号： G11B5/23 , G11B5/31 , G11B5/11
CPC分类号： G11B5/23 , G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： In one embodiment, a perpendicular magnetic recording head includes a main magnetic pole; a leading shield below a leading side of the main magnetic pole; a leading gap between the leading shield and the main magnetic pole; a trailing shield above a trailing side of the main magnetic pole; a trailing gap between the trailing shield and the main magnetic pole; and a nonmagnetic leading bump between the main magnetic pole and the leading shield. Additional embodiments are also disclosed.
摘要翻译：在一个实施例中，垂直磁记录头包括主磁极; 在主磁极的前端下方的主导屏蔽; 领先的屏蔽和主磁极之间的领先空间; 在主磁极的后侧上方的后挡板; 后挡板和主磁极之间的拖尾间隙; 以及主磁极和前屏蔽之间的非磁性引导凸块。还公开了另外的实施例。

6. 发明授权

US08335051B2 Perpendicular magnetic recording head having a magnetic layer overhanging a trailing side of a main pole and method of manufacture thereof 有权
标题翻译：具有悬垂在主极的后侧的磁性层的垂直磁记录头及其制造方法
公开(公告)号：US08335051B2
公开(公告)日：2012-12-18
申请号：US12636667
申请日：2009-12-11
申请人： Isao Nunokawa , Mikito Sugiyama , Kikuo Kusukawa , Kimitoshi Etoh
发明人： Isao Nunokawa , Mikito Sugiyama , Kikuo Kusukawa , Kimitoshi Etoh
IPC分类号： G11B5/187 , G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , Y10T29/49044
摘要： A recording head having a narrowed track has a high recording magnetic field strength and a high recording magnetic field gradient has certain problems which may be difficult to overcome. In one embodiment, a magnetic film, which overhangs from a track width, is provided on a trailing side of a. region retracted from an ABS of a main pole facing a recording medium. Thereby, a magnetic field strength on the trailing side is increased so that a difference in distribution of magnetic field strength defined by a geometrical bevel angle given to the main pole is increased. Consequently, writing performance of the main pole is improved while forming a large magnetic clearance angle with respect to an adjacent track and suppresses writing into an adjacent track when skew occurs. Other systems and methods are also disclosed regarding a head with a high recording magnetic field using an overhanging magnetic film.
摘要翻译：具有窄轨道的记录头具有高记录磁场强度，并且高记录磁场梯度具有可能难以克服的某些问题。在一个实施例中，从从磁道宽度伸出的磁性膜设置在从面向记录介质的主磁极的ABS缩回的区域的后侧。由此，后侧的磁场强度增加，使得由给予主极的几何斜角确定的磁场强度分布的差异增大。因此，当相对于相邻的轨道形成大的磁隙角度时，改善了主极的写入性能，并且在发生偏斜时抑制了向相邻轨道的写入。关于使用悬垂磁性膜的具有高记录磁场的磁头也公开了其它系统和方法。

7. 发明申请

US20100149697A1 PERPENDICULAR MAGNETIC RECORDING HEAD HAVING A MAGNETIC LAYER OVERHANGING A TRAILING SIDE OF A MAIN POLE AND METHOD OF MANUFACTURE THEREOF 有权
标题翻译：具有磁性层的永磁磁记录头，主要是一个主要的尾部及其制造方法
公开(公告)号：US20100149697A1
公开(公告)日：2010-06-17
申请号：US12636667
申请日：2009-12-11
申请人： Isao Nunokawa , Mikito Sugiyama , Kikuo Kusukawa , Kimitoshi Etoh
发明人： Isao Nunokawa , Mikito Sugiyama , Kikuo Kusukawa , Kimitoshi Etoh
IPC分类号： G11B5/33
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , Y10T29/49044
摘要： A recording head having a narrowed track has a high recording magnetic field strength and a high recording magnetic field gradient has certain problems which may be difficult to overcome. In one embodiment, a magnetic film, which overhangs from a track width, is provided on a trailing side of a region retracted from an ABS of a main pole facing a recording medium. Thereby, a magnetic field strength on the trailing side is increased so that a difference in distribution of magnetic field strength defined by a geometrical Bevel angle given to the main pole is increased. Consequently, writing performance of the main pole is improved while forming a large magnetic clearance angle with respect to an adjacent track and suppresses writing into an adjacent track when skew occurs. Other systems and methods are also disclosed regarding a head with a high recording magnetic field using an overhanging magnetic film.
摘要翻译：具有窄轨道的记录头具有高记录磁场强度，并且高记录磁场梯度具有可能难以克服的某些问题。在一个实施例中，从从磁道宽度伸出的磁性膜设置在从面向记录介质的主磁极的ABS缩回的区域的后侧。因此，后侧的磁场强度增加，从而增加了由给予主极的几何斜角确定的磁场强度分布的差异。因此，当相对于相邻的轨道形成大的磁隙角度时，改善了主极的写入性能，并且在发生偏斜时抑制了向相邻轨道的写入。关于使用悬垂磁性膜的具有高记录磁场的磁头也公开了其它系统和方法。

8. 发明授权

US09047885B2 Perpendicular magnetic recording head and method of manufacturing the same 有权
公开(公告)号：US09047885B2
公开(公告)日：2015-06-02
申请号：US12313608
申请日：2008-11-21
申请人： Mikito Sugiyama , Isao Nunokawa , Hiroyuki Hoshiya
发明人： Mikito Sugiyama , Isao Nunokawa , Hiroyuki Hoshiya
IPC分类号： G11B5/127 , G11B5/11 , G11B5/31
CPC分类号： G11B5/1278 , G11B5/112 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： Embodiments of the present invention provide a perpendicular magnetic recording head which can suppress reduction in recording field and efficiently reduce a fringe field. According to one embodiment, a side shield disposed at a side of each side face in a cross track direction of a main pole is arranged at a far leading side compared with the main pole.

9. 发明授权

US08767344B2 Magnetic recording head having a non-conformal side gap and methods of production thereof 有权
标题翻译：具有非保形侧隙的磁记录头及其制造方法
公开(公告)号：US08767344B2
公开(公告)日：2014-07-01
申请号：US12976998
申请日：2010-12-22
申请人： Masayoshi Ishibashi , Kimitoshi Eto , Mikito Sugiyama
发明人： Masayoshi Ishibashi , Kimitoshi Eto , Mikito Sugiyama
IPC分类号： G11B5/127
CPC分类号： G11B5/315 , G11B5/3116
摘要： In one embodiment, a magnetic head includes a main pole having a leading side and a trailing side relative to a downtrack direction, a side gap layer positioned adjacent to the main pole in a crosstrack direction, and a side shield layer positioned adjacent the side gap layer in a crosstrack direction. The downtrack direction is in a direction of medium travel relative to the main pole, the crosstrack direction is perpendicular to the downtrack direction, the side gap layer is characterized by having a groove therein in the downtrack direction having the main pole positioned therein, the side shield is characterized by having a groove formed therein in the downtrack direction having the side gap layer positioned therein, the side gap is non-conformal in shape, and a position of the side shield relative to a position of the main pole is characterized as being self-aligned.
摘要翻译：在一个实施例中，磁头包括主极，其相对于下行方向具有前侧和后侧;跨接方向位于主极附近的侧间隙层，以及邻近侧间隙定位的侧屏蔽层层在交叉方向。倾斜方向是相对于主极的介质行进方向，横向方向垂直于下倾方向，侧间隙层的特征在于在其中具有位于其中的主极的沿倾斜方向的槽，侧面其特征在于，在所述倾斜方向上形成有沿所述侧向间隙层形成的所述槽，所述侧部间隙的形状为非共形形状，所述侧面罩相对于所述主极的位置的位置的特征在于：自我调节

10. 发明授权

US08570686B2 Magnetic recording head with non-conformal side shield gap 有权
标题翻译：具有非保形侧屏蔽间隙的磁记录头
公开(公告)号：US08570686B2
公开(公告)日：2013-10-29
申请号：US13419283
申请日：2012-03-13
申请人： Kazuhiko Hosomi , Kimitoshi Eto , Mikito Sugiyama , Junichi Hashimoto , Kazue Kudo , Misuzu Kanai
发明人： Kazuhiko Hosomi , Kimitoshi Eto , Mikito Sugiyama , Junichi Hashimoto , Kazue Kudo , Misuzu Kanai
IPC分类号： G11B5/33
CPC分类号： G11B5/235 , G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： A magnetic write head having a shield structure that provides both a leading shield and side shielding function. The magnetic shield is separated from the sides and leading edge of the write pole by a non-magnetic gap layer that has a non-uniform thickness. The non-magnetic gap layer is thicker near the leading edge and thinner at the trailing edge. This allows for increased side field gradient near the trailing edge of the write pole and decreased write field loss at the leading edge of the write pole.
摘要翻译：具有提供前屏蔽和侧屏蔽功能的屏蔽结构的磁写头。磁屏蔽通过非均匀厚度的非磁性间隙层与写磁极的侧边和前边缘分开。非磁性间隙层在前缘附近较厚，在后缘较薄。这允许在写入极的后沿附近增加的侧场梯度，并且在写入极的前沿减小写入场损耗。

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