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1. 发明授权

US07920357B2 Magnetic recording method using ferromagnetic resonance and thin-film magnetic head for using the method 有权
标题翻译：使用铁磁共振和薄膜磁头的磁记录方法
公开(公告)号：US07920357B2
公开(公告)日：2011-04-05
申请号：US11907095
申请日：2007-10-09
申请人： Isamu Sato , Tetsuya Roppongi , Yuichi Watabe , Norikazu Ota , Hiroshi Ikeda , Mikio Matsuzaki
发明人： Isamu Sato , Tetsuya Roppongi , Yuichi Watabe , Norikazu Ota , Hiroshi Ikeda , Mikio Matsuzaki
IPC分类号： G11B5/17
CPC分类号： G11B5/3123 , B82Y10/00 , G11B5/1278 , G11B5/743 , G11B2005/0005
摘要： Provided is a thin-film magnetic head capable of writing data with high accuracy on a magnetic recording medium having high coercive force without heating. The head comprises an electromagnetic coil element comprising: a main magnetic pole; an auxiliary magnetic pole; and a write coil formed so as to pass through at least between the main magnetic pole and the auxiliary magnetic pole, for generating the write magnetic field. In this head, a part of the write coil has a layered structure of: a resonance coil layer for generating a resonance magnetic field having ferromagnetic resonance frequency of a magnetic recording layer of a magnetic recording medium or having a frequency in the vicinity thereof; and a write coil layer. And further, the resonance coil layer and the write coil layer sandwich an insulating layer therebetween.
摘要翻译：提供了一种能够在没有加热的情况下在具有高矫顽力的磁记录介质上高精度地写入数据的薄膜磁头。头部包括电磁线圈元件，包括：主磁极; 辅助磁极; 以及形成为至少在主磁极和辅助磁极之间通过的用于产生写入磁场的写入线圈。在该磁头中，写入线圈的一部分具有以下结构：谐振线圈层，用于产生具有磁记录介质的磁记录层的铁磁共振频率或其附近频率的共振磁场; 和写入线圈层。此外，共振线圈层和写入线圈层之间夹有绝缘层。

2. 发明授权

US07843667B2 Thin film magnetic head, head gimbal assembly, head arm assembly and magnetic disk device 有权
标题翻译：薄膜磁头，头万向架组件，头臂组件和磁盘装置
公开(公告)号：US07843667B2
公开(公告)日：2010-11-30
申请号：US11802219
申请日：2007-05-21
申请人： Kei Hirata , Norikazu Ota , Yuichi Watabe , Tetsuro Sasaki , Takeo Kagami , Tetsuya Roppongi , Kazuki Sato , Yuji Otsubo , Sohei Horiuchi , Yoshiaki Tanaka , Kenji Yokoyama , Noriaki Kasahara
发明人： Kei Hirata , Norikazu Ota , Yuichi Watabe , Tetsuro Sasaki , Takeo Kagami , Tetsuya Roppongi , Kazuki Sato , Yuji Otsubo , Sohei Horiuchi , Yoshiaki Tanaka , Kenji Yokoyama , Noriaki Kasahara
IPC分类号： G11B5/39 , G11B5/127
CPC分类号： G11B5/3146 , G11B5/11 , G11B5/3912 , G11B5/3967 , G11B5/6064
摘要： Provided is a thin film magnetic head capable of suppressing an occurrence of a track erase, decreasing an influence on a magnetoresistive element caused by a magnetic flux generated from a thin film coil, and further decreasing the parasitic capacity. The thin film magnetic head has, in order in a stacked direction, a first magnetic shield layer, a magnetoresistive element, a second magnetic shield layer, a third magnetic shield layer, a main magnetic pole layer and a return yoke layer. A width in a track width direction of at least one of the first and the second magnetic shield layers is smaller than widths in a track width direction of the third magnetic shield layer and the return yoke layer.
摘要翻译：提供一种薄膜磁头，其能够抑制磁道擦除的发生，减少由由薄膜线圈产生的磁通引起的对磁阻元件的影响，并进一步降低寄生电容。薄膜磁头沿堆叠方向依次具有第一磁屏蔽层，磁阻元件，第二磁屏蔽层，第三磁屏蔽层，主磁极层和返回磁轭层。第一和第二磁屏蔽层中的至少一个的轨道宽度方向上的宽度小于第三磁屏蔽层和返回磁轭层的磁道宽度方向上的宽度。

3. 发明授权

US07554766B2 Magnetic head for perpendicular magnetic recording in which gap thickness and pole layer shape are defined for suppressing occurrence of pole erase phenomenon 有权
标题翻译：用于垂直磁记录的磁头，其中限定了间隙厚度和极层形状以抑制磁极擦除现象的发生
公开(公告)号：US07554766B2
公开(公告)日：2009-06-30
申请号：US11304769
申请日：2005-12-16
申请人： Norikazu Ota , Tetsuya Roppongi
发明人： Norikazu Ota , Tetsuya Roppongi
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278
摘要： A magnetic head for perpendicular magnetic recording comprises: a pole layer, a write shield layer, and a gap layer provided between the pole layer and the write shield layer. The pole layer incorporates a track width defining portion and a wide portion. The track width defining portion has an end located in a medium facing surface and defines the track width. The wide portion is coupled to the other end of the track width defining portion and has a width greater than the width of the track width defining portion. The value of NH×TH/WG is greater than zero and smaller than or equal to 0.85 μm, where NH is the distance from the medium facing surface to the boundary between the track width defining portion and the wide portion, WG is the space between the pole layer and the write shield layer taken in the medium facing surface, and TH is the distance from the medium facing surface to a point at which the space between the pole layer and the write shield layer starts to be greater than WG.
摘要翻译：用于垂直磁记录的磁头包括：极层，写屏蔽层和设置在极层和写屏蔽层之间的间隙层。极层包括轨道宽度限定部分和宽部分。轨道宽度限定部分具有位于介质面向表面中并限定轨道宽度的端部。宽部分耦合到轨道宽度限定部分的另一端并且具有大于轨道宽度限定部分的宽度的宽度。 NHxTH / WG的值大于零且小于或等于0.85μm，其中NH是从介质面向表面到轨道宽度限定部分与宽部分之间的边界的距离，WG是极点之间的空间并且写入屏蔽层被带到介质面对表面，并且TH是从介质面向表面到极层和写入屏蔽层之间的空间开始大于WG的点的距离。

4. 发明授权

US07983009B2 Magnetic recording/reproducing system, and thin-film magnetic head having shield layers of specified widths 有权
标题翻译：磁记录/再现系统以及具有规定宽度的屏蔽层的薄膜磁头
公开(公告)号：US07983009B2
公开(公告)日：2011-07-19
申请号：US11749930
申请日：2007-05-17
申请人： Norikazu Ota , Tetsuya Roppongi
发明人： Norikazu Ota , Tetsuya Roppongi
IPC分类号： G11B5/31 , G11B5/39
CPC分类号： G11B5/11 , G11B5/3116 , G11B5/313 , G11B5/3146 , G11B5/3916 , G11B5/3967
摘要： The invention provides a magnetic recording/reproducing system constructed such that until the skew angle is past the maximum skew angle αmax, the edges of the write shield layer and the edges of the lower read shield layer do not overlap on the same track, so that upon application of an external magnetic field, the already written signals are kept back from degradation.
摘要翻译：本发明提供一种磁记录/再现系统，其被构造成使得直到倾斜角度超过最大倾斜角度αmax时，写入屏蔽层的边缘和下部读取屏蔽层的边缘在相同的轨道上不重叠，使得在施加外部磁场时，已经写入的信号被退化。

5. 发明申请

US20080180858A1 Perpendicular magnetic write head and method of manufacturing perpendicular magnetic write head, and magnetic write device 有权
标题翻译：垂直写磁头及垂直写磁头制造方法及磁写装置
公开(公告)号：US20080180858A1
公开(公告)日：2008-07-31
申请号：US12010160
申请日：2008-01-22
申请人： Norikazu Ota , Tetsuya Roppongi , Yuichi Watabe
发明人： Norikazu Ota , Tetsuya Roppongi , Yuichi Watabe
IPC分类号： G11B5/33
CPC分类号： G11B5/3116 , G11B5/112 , G11B5/1278 , G11B5/3163 , G11B5/3967
摘要： Provided are a perpendicular magnetic write head capable of achieving the high performance and stability in the writing performance, and a method of manufacturing the same. On a trailing side of a main magnetic pole layer, disposed are a gap layer extending backward from an air bearing surface and an auxiliary magnetic pole layer extending backward from a position recessed from the air bearing surface. The auxiliary magnetic pole layer is partially overlapped on the gap layer. In case the auxiliary magnetic pole layer is formed using etching method in the process of manufacturing the perpendicular magnetic write head, the gap layer has a function as an etching stopper layer so that the main magnetic pole layer is protected; thereby the already-formed main magnetic pole layer is not subjected to etching.
摘要翻译：提供能够实现写入性能的高性能和稳定性的垂直磁性写入头及其制造方法。在主磁极层的后侧设置有从空气轴承表面向后延伸的间隙层和从空气轴承表面凹陷的位置向后延伸的辅助磁极层。辅助磁极层部分地重叠在间隙层上。在制造垂直写磁头的过程中，使用蚀刻方法形成辅助磁极层的情况下，间隙层具有作为蚀刻停止层的功能，从而保护主磁极层; 因此已经形成的主磁极层不进行蚀刻。

6. 发明申请

US20080151436A1 Magnetic recording method using ferromagnetic resonance and thin-film magnetic head for using the method 有权
标题翻译：使用铁磁共振和薄膜磁头的磁记录方法
公开(公告)号：US20080151436A1
公开(公告)日：2008-06-26
申请号：US11907095
申请日：2007-10-09
申请人： Isamu Sato , Tetsuya Roppongi , Yuichi Watabe , Norikazu Ota , Hiroshi Ikeda , Mikio Matsuzaki
发明人： Isamu Sato , Tetsuya Roppongi , Yuichi Watabe , Norikazu Ota , Hiroshi Ikeda , Mikio Matsuzaki
IPC分类号： G11B5/33
CPC分类号： G11B5/3123 , B82Y10/00 , G11B5/1278 , G11B5/743 , G11B2005/0005
摘要： Provided is a thin-film magnetic head capable of writing data with high accuracy on a magnetic recording medium having high coercive force without heating. The head comprises an electromagnetic coil element comprising: a main magnetic pole; an auxiliary magnetic pole; and a write coil formed so as to pass through at least between the main magnetic pole and the auxiliary magnetic pole, for generating the write magnetic field. In this head, a part of the write coil has a layered structure of: a resonance coil layer for generating a resonance magnetic field having ferromagnetic resonance frequency of a magnetic recording layer of a magnetic recording medium or having a frequency in the vicinity thereof; and a write coil layer. And further, the resonance coil layer and the write coil layer sandwich an insulating layer therebetween.
摘要翻译：提供了一种能够在没有加热的情况下在具有高矫顽力的磁记录介质上高精度地写入数据的薄膜磁头。头部包括电磁线圈元件，包括：主磁极; 辅助磁极; 以及形成为至少在主磁极和辅助磁极之间通过的用于产生写入磁场的写入线圈。在该磁头中，写入线圈的一部分具有以下结构：谐振线圈层，用于产生具有磁记录介质的磁记录层的铁磁共振频率或其附近频率的共振磁场; 和写入线圈层。此外，共振线圈层和写入线圈层之间夹有绝缘层。

7. 发明授权

US07154707B2 Thin film magnetic head and magnetic recording apparatus 有权
标题翻译：薄膜磁头和磁记录装置
公开(公告)号：US07154707B2
公开(公告)日：2006-12-26
申请号：US10805408
申请日：2004-03-22
申请人： Yuichi Watabe , Norikazu Ota , Yasuyuki Notsuke , Susumu Aoki , Tetsuya Roppongi , Naoto Matono
发明人： Yuichi Watabe , Norikazu Ota , Yasuyuki Notsuke , Susumu Aoki , Tetsuya Roppongi , Naoto Matono
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/313 , G11B5/3967
摘要： Provided is a thin film magnetic head capable of securing recording characteristics even in the case where a return pole layer is disposed on a medium-outgoing side of the pole layer. The return yoke layer is disposed on a trailing side of the pole layer, and a neck height NH is within a range of NH≦W1 (a width of a front end portion in a main pole layer)+0.05 μm, and a height ratio (a ratio of the neck height NH to a throat height TH) NH/TH is within a range of 0.5
摘要翻译：提供了即使在极性层的介质输出侧设置返回极层的情况下也能够确保记录特性的薄膜磁头。返回轭层设置在极层的后侧，颈部高度NH在NH <= W 1（主极层的前端部的宽度）+0.05μm的范围内，并且高度比（颈部高度NH与喉部高度TH的比）NH / TH在0.5

8. 发明授权

US07974046B2 Thin-film magnetic head with heating portion and protrusion adjustment portion, head gimbal assembly equipped head, magnetic recording/reproducing apparatus equipped HGA, and manufacturing method of head 有权
标题翻译：具有加热部分和凸起调节部分的薄膜磁头，头部万向头组件头，装备有HGA的磁记录/再现装置，以及头部的制造方法
公开(公告)号：US07974046B2
公开(公告)日：2011-07-05
申请号：US11873666
申请日：2007-10-17
申请人： Norikazu Ota , Tetsuya Roppongi , Hiraku Hirabayashi , Yuichi Watabe
发明人： Norikazu Ota , Tetsuya Roppongi , Hiraku Hirabayashi , Yuichi Watabe
IPC分类号： G11B5/56
CPC分类号： G11B5/3136 , G11B5/102 , G11B5/1278 , G11B5/314 , G11B5/3169 , G11B5/3173 , G11B5/3967 , G11B5/6064
摘要： The present invention provides a thin-film magnetic head which surely improves the writing and reading characteristic with reducing the flying height and surely handles the contact or collision with the magnetic recording medium.A thin-film magnetic head is provided, which includes, an substrate with ABS; a read or write head element provided on an element-formed surface of the substrate; at least one protrusion adjustment portion whose end reaches a slider end surface on the ABS side, which provides on an element-formed surface of the substrate; at least one heating portion provided rear at least one protrusion adjustment portion viewed from the slider end surface on the ABS side.
摘要翻译：本发明提供了一种薄膜磁头，其可以在降低飞行高度的同时确保提高写入和读取特性，并且可靠地处理与磁记录介质的接触或碰撞。提供了一种薄膜磁头，其包括具有ABS的基板; 设置在所述基板的元件形成表面上的读或写头元件; 至少一个突起调节部分，其端部到达ABS侧的滑块端面，其提供在所述基板的元件形成表面上; 至少一个加热部分，设置在从ABS侧的滑块端面观察的至少一个突起调节部的后方。

9. 发明授权

US07522376B2 Perpendicular magnetic recording head and method of manufacturing the same 有权
标题翻译：垂直磁记录头及其制造方法
公开(公告)号：US07522376B2
公开(公告)日：2009-04-21
申请号：US10699802
申请日：2003-11-04
申请人： Naoto Matono , Tetsuya Roppongi , Norikazu Ota
发明人： Naoto Matono , Tetsuya Roppongi , Norikazu Ota
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/313 , G11B2005/0029
摘要： Provided is a thin film magnetic head capable of appropriately control the flow of magnetic flux from a yoke layer to a pole layer so as to prevent information from being overwritten without intention during recording. A perpendicular recording system thin film magnetic head is formed so that a portion of a yoke layer and a portion of a pole layer are connected to each other in a connecting surface. When a large amount of the magnetic flux contained in the yoke layer flows into the pole layer through the connecting surface, the large amount of the magnetic flux is concentrated in the connecting surface, so an excessive amount of the magnetic flux is not supplied to a front end portion of the pole layer, and an appropriate amount of the magnetic flux is supplied. Therefore, by the function of concentrating the magnetic flux in the connecting surface, the flow of the magnetic flux from the yoke layer to the pole layer can be appropriately controlled, thereby information can be prevented from being overwritten without intention during recording.
摘要翻译：本发明提供一种薄膜磁头，其能够适当地控制从磁轭层到磁极层的磁通量的流动，以防止在记录期间无意地覆盖信息。垂直记录系统薄膜磁头被形成为使得磁轭层的一部分和极性层的一部分在连接表面上彼此连接。当磁轭层中包含的大量磁通量通过连接表面流入极层时，大量的磁通量集中在连接表面上，因此不会将过量的磁通量提供给极层的前端部分供给适量的磁通量。因此，通过将磁通集中在连接面上的功能，可以适当地控制从磁轭层到磁极层的磁通量的流动，从而可以防止在记录期间无意地覆盖信息。

10. 发明授权

US07245454B2 Magnetic head for vertical magnetic recording including main pole layer having varying width and thickness, head gimbal assembly, and hard disk drive 有权
标题翻译：用于垂直磁记录的磁头，包括具有不同宽度和厚度的主极层，磁头万向架组件和硬盘驱动器
公开(公告)号：US07245454B2
公开(公告)日：2007-07-17
申请号：US10832274
申请日：2004-04-27
申请人： Susumu Aoki , Yasuyuki Notsuke , Yuichi Watabe , Norikazu Ota , Tetsuya Roppongi
发明人： Susumu Aoki , Yasuyuki Notsuke , Yuichi Watabe , Norikazu Ota , Tetsuya Roppongi
IPC分类号： G11B5/31 , G11B5/23
CPC分类号： G11B5/1278
摘要： A write head of a magnetic head for vertical magnetic recording comprises: a coil; a main pole layer that allows the magnetic flux corresponding to the magnetic field generated by the coil to pass therethrough and generates a write magnetic field; an auxiliary pole layer; a gap layer provided between the main pole layer and the auxiliary pole layer; and a yoke layer for magnetically coupling the main pole layer to the auxiliary pole layer. The main pole layer has a flat top surface. In the main pole layer the position in which the thickness starts to increase is located between the medium facing surface and the position in which the width starts to increase.
摘要翻译：用于垂直磁记录的磁头的写头包括：线圈; 主极层，其允许对应于由线圈产生的磁场的磁通量通过，并产生写入磁场; 辅助极层; 设置在主极层和辅助极层之间的间隙层; 以及用于将主极层磁耦合到辅助极层的磁轭层。主极层具有平坦的顶表面。在主极层中，厚度开始增加的位置位于介质相对表面和宽度开始增加的位置之间。

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