专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明申请

US20130070364A1 THIN FILM MAGNETIC HEAD AND MANUFACTURING METHOD THEREOF 审中-公开
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US20130070364A1
公开(公告)日：2013-03-21
申请号：US13233092
申请日：2011-09-15
申请人： Yuji Matsuura , Atsushi Yamaguchi , Tetsuji Hori , Naoto Matono
发明人： Yuji Matsuura , Atsushi Yamaguchi , Tetsuji Hori , Naoto Matono
IPC分类号： G11B5/17 , G11B21/02 , G11B5/127 , G11B5/48
CPC分类号： G11B5/3123 , G11B5/1278 , G11B5/3163 , Y10T29/49032
摘要： A thin film magnetic head of the present invention is configured to include a main pole layer; a main pole direct junction magnetic layer that has an auxiliary pole layer and an auxiliary yoke layer, the main pole direct junction magnetic layer being directly joined to the main pole layer in a state where a recording gap layer is partially intervened near an air bearing surface (ABS) with respect to the main pole layer; and a first magnetic recording exciting coil that is buried between the auxiliary pole layer and the auxiliary yoke layer configuring the main magnetic direct junction magnetic layer with an insulating layer therebetween. Thereby, an effective magnetic path length can be shortened in order to improve the high-frequency characteristics, and furthermore, simplification of the manufacturing processes becomes possible.
摘要翻译：本发明的薄膜磁头构造成包括主极层; 具有辅助极层和辅助磁轭层的主极直接结磁性层，在记录间隙层部分地插入到空气轴承表面的状态下，主极直接结磁性层直接接合到主极层（ABS）相对于主极层; 以及第一磁记录励磁线圈，其被埋在辅助极层和构成主磁性直接结磁性层的辅助磁轭层之间，其间具有绝缘层。由此，为了提高高频特性，可以缩短有效的磁路长度，进而可以简化制造工序。

22. 发明授权

US08400732B2 Perpendicular magnetic write head, having side shields coupled to a leading shield and apart from a trailing shield 失效
标题翻译：垂直磁写头，具有耦合到前屏蔽并且与后屏蔽分开的侧屏蔽
公开(公告)号：US08400732B2
公开(公告)日：2013-03-19
申请号：US11979822
申请日：2007-11-08
申请人： Naoto Matono
发明人： Naoto Matono
IPC分类号： G11B5/127 , G11B5/147
CPC分类号： G11B5/1278 , G11B5/112 , G11B5/3146 , G11B5/315
摘要： The present invention provides a perpendicular magnetic write head capable of preventing unintended erasure of information due to spread of a magnetic field for writing. A leading shield, two side shields, and a trailing shield are disposed around (a front end portion of) a main magnetic pole layer. A nonmagnetic layer having a uniform thickness formed by ALD is provided between the front end portion and two side shields. Consequently, intervals are constant in any positions. Spread of magnetic fields for recording in a write track width direction is suppressed sufficiently more than the case where the intervals vary among positions.
摘要翻译：本发明提供一种能够防止由于用于写入的磁场的扩展而引起的信息的意外擦除的垂直磁性写入头。主磁极层（主磁极层的前端部）周围配置有前导屏蔽，两侧屏蔽和后屏蔽。在前端部分和两个侧面屏蔽之间设置由ALD形成的具有均匀厚度的非磁性层。因此，间隔在任何位置是恒定的。与写入磁道宽度方向记录的磁场的扩展比在各位置之间变化的情况充分地被抑制。

23. 发明授权

US08355222B2 Perpendicular magnetic write head including high magnetic moment seed layer for trailing shield therein and/or method of making the same 有权
标题翻译：包括用于后挡板的高磁矩种子层的垂直磁性写头和/或其制造方法
公开(公告)号：US08355222B2
公开(公告)日：2013-01-15
申请号：US12801904
申请日：2010-06-30
申请人： Tetsuya Mino , Naoto Matono , Ikuhito Onodera , Kazushi Nishiyama , Michitoshi Tsuchiya , Kenji Sasaki
发明人： Tetsuya Mino , Naoto Matono , Ikuhito Onodera , Kazushi Nishiyama , Michitoshi Tsuchiya , Kenji Sasaki
IPC分类号： G11B5/11 , G11B5/23
CPC分类号： G11B5/1278 , G11B5/23 , G11B5/3116 , G11B5/315 , G11B5/3163 , Y10T29/49043 , Y10T29/49044
摘要： A perpendicular magnetic write head includes: a magnetic pole; a pair of nonmagnetic side gap layers provided on both sides in a track-width direction of the magnetic pole; a nonmagnetic trailing gap layer provided on a trailing side of the magnetic pole; a magnetic shield layer so provided as to surround the magnetic pole with both of the nonmagnetic side gap layer and the nonmagnetic trailing gap layer in between; and a magnetic seed layer formed between the nonmagnetic trailing gap layer and the magnetic shield layer, and having a saturation magnetic flux density higher than that of the magnetic shield layer. The magnetic seed layer is not formed between the nonmagnetic side gap layer and the magnetic shield layer.
摘要翻译：垂直磁性写头包括：磁极; 设置在所述磁极的轨道宽度方向的两侧的一对非磁性侧间隙层; 设置在磁极的后侧的非磁性拖尾间隙层; 设置为围绕磁极的磁屏蔽层，其间具有非磁性侧间隙层和非磁性拖尾间隙层; 以及形成在非磁性后隙间隔层和磁屏蔽层之间的磁性种子层，并且具有高于磁屏蔽层的饱和磁通密度的饱和磁通密度。在非磁性侧间隙层和磁屏蔽层之间不形成磁性种子层。

24. 发明申请

US20110063754A1 Perpendicular magnetic write head 失效
标题翻译：垂直写磁头
公开(公告)号：US20110063754A1
公开(公告)日：2011-03-17
申请号：US12585456
申请日：2009-09-15
申请人： Tetsuya Mino , Naoto Matono , Ikuhito Onodera , Kazushi Nishiyama , Michitoshi Tsuchiya , Kenji Sasaki
发明人： Tetsuya Mino , Naoto Matono , Ikuhito Onodera , Kazushi Nishiyama , Michitoshi Tsuchiya , Kenji Sasaki
IPC分类号： G11B5/187
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163
摘要： A perpendicular magnetic write head in which unintended erasure of information at the time of non-writing can be suppressed while keeping the capability of writing is provided. The perpendicular magnetic write head includes a magnetic pole tip portion, a first yoke portion connected to the magnetic pole tip portion, having a width larger than that of the magnetic pole tip portion, and having a recess portion in a center region thereof, and a second yoke portion embedded in the recess portion. The magnetic pole tip portion and the first yoke portion are integrally formed with a vapor deposition method, and the second yoke portion is formed with a plating method. Since the saturation flux density of the magnetic pole tip portion formed with the vapor deposition method becomes higher than that of the yoke portion, a magnetic flux intake capacity of the magnetic pole tip portion is ensured. In a magnetic domain structure of the yoke portion most of which is formed with the plating method, since an easy magnetization axis becomes likely to be directed in a direction perpendicular to an emitting direction of a magnetic flux, residual flux becomes less likely to leak out of the main magnetic pole layer at the time of non-writing.
摘要翻译：提供了在保持写入能力的同时抑制在非写入时的意外擦除信息的垂直磁性写入头。垂直磁性写入头包括磁极尖端部分，连接到磁极尖端部分的第一磁轭部分，其宽度大于磁极尖端部分的宽度，并且在其中心区域具有凹部，第二轭部嵌入凹部。磁极端部和第一磁轭部用气相沉积法一体形成，第二磁轭部形成电镀法。由于利用气相沉积法形成的磁极尖端部分的饱和磁通密度变得高于磁轭部分的饱和磁通密度，所以确保了磁极尖端部分的磁通量进入容量。在磁轭部分的磁畴结构中，其大部分由电镀法形成，由于容易的磁化轴变得可能沿垂直于磁通的发射方向的方向被引导，所以残余磁通不太可能泄漏在非写入时的主磁极层。

25. 发明授权

US07779534B2 Thin film magnetic head, method of manufacturing the same, and magnetic recording head 有权
标题翻译：薄膜磁头，制造方法和磁记录头
公开(公告)号：US07779534B2
公开(公告)日：2010-08-24
申请号：US11764637
申请日：2007-06-18
申请人： Naoto Matono
发明人： Naoto Matono
IPC分类号： H04R31/00
CPC分类号： G11B5/312 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/4906
摘要： The present invention provides a thin film magnetic head capable of suppressing unintentional wiring to a neighboring track and preventing information recorded on a recording medium from being erased. A main magnetic pole layer is constructed so that height of a widened end surface in a lower main magnetic pole layer specifying a wide portion is smaller than height of an exposed surface in an upper main magnetic pole layer (front end portion) specifying a uniform width portion. Since the area of the widened end surface is narrowed with respect to the area of the exposed surface, even if an amount of magnetic flux flowing in the lower main magnetic pole layer increases at the time of recording information, as compared with the case where the height of the widened end surface is equal to the height of the exposed surface, unintentional emission of the magnetic flux flowing in the lower main magnetic pole layer from the widened end surface not via the upper main magnetic pole layer (front end portion) toward the recording medium is suppressed.
摘要翻译：本发明提供一种薄膜磁头，其能够抑制对相邻磁道的无意的布线，并且防止记录在记录介质上的信息被擦除。主磁极层被构造成使得指定宽的部分的下主要主磁极层中的加宽端面的高度小于指定均匀宽度的上主磁极层（前端部分）中的暴露表面的高度一部分。由于加宽端面的面积相对于露出面的面积变窄，所以即使在记录信息时在下侧主磁极层中流动的磁通量增加，与加宽端面的高度等于暴露表面的高度，从而不会通过上主磁极层（前端部）向下侧主磁极层流过下侧主磁极层的磁通量的非故意发射记录介质被抑制。

26. 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

27. 发明授权

US07061719B2 Thin film magnetic head and method of manufacturing the same 失效
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US07061719B2
公开(公告)日：2006-06-13
申请号：US10673333
申请日：2003-09-30
申请人： Naoto Matono , Norikazu Ota , Yuichi Watabe , Susumu Aoki , Yasuyuki Notsuke
发明人： Naoto Matono , Norikazu Ota , Yuichi Watabe , Susumu Aoki , Yasuyuki Notsuke
IPC分类号： G11B5/147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3166 , G11B5/3903 , G11B5/3909 , G11B5/3967 , G11B2005/3996
摘要： A thin film magnetic head which has a thin film coil for generating a magnetic flux and a magnetic pole layer for emitting the magnetic flux generated by the thin film coil toward a recording medium. The magnetic pole layer having a stacked structure including a main magnetic pole layer, an auxiliary magnetic pole layer, and a non-magnetic pole layer. The main magnetic pole layer is disposed so as to be exposed in a recording medium facing surface which faces the recording medium. The auxiliary magnetic pole layer has one end face recessed from the recording medium facing surface and which is disposed so as to face a part of the main magnetic pole layer. The non-magnetic layer is disposed so as to be sandwiched between the main magnetic pole layer and the auxiliary magnetic pole layer.
摘要翻译：一种薄膜磁头，其具有用于产生磁通的薄膜线圈和用于将由薄膜线圈产生的磁通朝向记录介质发射的磁极层。具有包括主磁极层，辅助磁极层和非磁极层的堆叠结构的磁极层。主磁极层被设置为暴露在面向记录介质的面向记录介质的表面上。辅助磁极层具有从记录介质相对表面凹陷的一个端面并且被设置为面对主磁极层的一部分。非磁性层被设置成夹在主磁极层和辅助磁极层之间。

28. 发明申请

US20060117556A1 Thin film magnetic head and method of manufacturing the same 有权
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US20060117556A1
公开(公告)日：2006-06-08
申请号：US11332224
申请日：2006-01-17
申请人： Naoto Matono , Akihiro Oda
发明人： Naoto Matono , Akihiro Oda
IPC分类号： G11B5/187
CPC分类号： G11B5/1278 , G11B5/1871 , G11B5/3116 , G11B5/313 , G11B2005/0029 , Y10T29/49021 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： Provided is a thin film magnetic head capable of inhibiting the occurrence of track erasing and improving the reliability of magnetic recording. Two taper surfaces are disposed on both sides of a return yoke layer. As no corner portion which may induce concentration of a magnetic flux exists on the both sides of the return yoke layer, even if the magnetic flux emitted from a pole layer is returned to the return yoke layer through a hard disk, a magnetic field strength is not locally and pronouncedly concentrated in proximity to the taper surfaces of the return yoke layer. Thereby, the concentration of the magnetic flux can be prevented, and the probability of the occurrence of unnecessary recording decreases, so the occurrence of track erasing can be inhibited, and the reliability of magnetic recording can be improved.
摘要翻译：本发明提供一种薄膜磁头，其能够抑制磁道擦除的发生，提高磁记录的可靠性。两个锥形表面设置在返回轭层的两侧。由于在返回磁轭层的两侧不存在可能引起磁通集中的角部，所以即使从极层发出的磁通通过硬盘返回到返回磁轭层，磁场强度为不局部地且显着地集中在靠近返回轭层的锥形表面。由此，可以防止磁通量的集中，并且不必要的记录的发生的可能性降低，从而可以抑制磁道擦除的发生，并且可以提高磁记录的可靠性。

29. 发明申请

US20060098339A1 Method for manufacturing a magnetic head using a multi-stage ion milling 有权
标题翻译：使用多级离子铣削制造磁头的方法
公开(公告)号：US20060098339A1
公开(公告)日：2006-05-11
申请号：US11266350
申请日：2005-11-04
申请人： Yoshihiko Koyama , Naoto Matono , Yasuyuki Notsuke
发明人： Yoshihiko Koyama , Naoto Matono , Yasuyuki Notsuke
IPC分类号： G11B5/147
CPC分类号： G11B5/3169 , G11B5/1278 , G11B5/3116 , G11B5/3163 , Y10T29/49052
摘要： A method for manufacturing a magnetic head for perpendicular magnetic recording is disclosed. The method comprising: a first step of depositing a non-magnetic film over and around the main magnetic pole, and subsequently polishing and planarizing the non-magnetic film, wherein the non-magnetic film is made of a non-magnetic material which exhibits a lower ion milling rate than that of a magnetic metal material which constitutes the main magnetic pole; a second step of etching the surface by means of ion milling at a first angle relative to a stacked direction of the magnetic head, to form a stepped portion in which the main magnetic pole is lower from the non-magnetic film around the main magnetic pole; and a third step of etching the stepped portion, by means of ion milling, at a second angle relative to the stacked direction, wherein the second angle is larger than the first angle.
摘要翻译：公开了用于制造用于垂直磁记录的磁头的方法。该方法包括：第一步骤，在主磁极上方和周围沉积非磁性膜，随后抛光和平面化非磁性膜，其中非磁性膜由非磁性材料制成，其表现出比构成主磁极的磁性金属材料的离子研磨速度低; 通过离子铣削相对于磁头的堆叠方向以第一角度蚀刻表面的第二步骤，以形成主磁极从主磁极周围的非磁性膜下降的阶梯部分 ; 以及第三步骤，通过离子研磨，相对于所述堆叠方向以第二角蚀刻所述阶梯部分，其中所述第二角度大于所述第一角度。

30. 发明申请

US20060012914A1 Thin film magnetic head, head gimbals assembly, head arm assembly, magnetic recording apparatus, and method of manufacturing thin film magnetic head 审中-公开
标题翻译：薄膜磁头，头架万向节组件，头臂组件，磁记录装置以及制造薄膜磁头的方法
公开(公告)号：US20060012914A1
公开(公告)日：2006-01-19
申请号：US11165202
申请日：2005-06-24
申请人： Naoto Matono
发明人： Naoto Matono
IPC分类号： G11B5/147
CPC分类号： G11B5/3106 , G11B5/1278
摘要： The present invention provides a thin film magnetic head capable of assuring stability in recording process. A write shield layer is constructed so as to have a thickness T1 on the side far from an air bearing surface and a thickness T2 larger than the thickness T1 (T2>T1) by projecting to both of the trailing and leading sides on the side close to the air bearing surface. The volume of the write shield layer becomes relatively small in a rear part and becomes relatively large in a front part. Consequently, the area of an exposed face exposed on the air bearing surface becomes sufficiently large and the magnetic volume around the air bearing surface becomes sufficiently large in the front part, and the thermal expansion amount becomes sufficiently small in the rear part. Therefore, a magnetic flux received from the exposed face of the write shield layer becomes less concentrated in the air bearing surface and the write shield layer is resistive to excessively expand by the influence of heat.
摘要翻译：本发明提供一种能够确保记录过程中的稳定性的薄膜磁头。写屏蔽层被构造成在远离空气轴承表面的一侧具有厚度T 1，并且通过向尾部和前端两者突出地设置大于厚度T 1（T 2> T 1）的厚度T 2 侧面靠近空气轴承表面。写入屏蔽层的体积在后部变得相对较小，并且在前部变得相对较大。因此，暴露在空气轴承表面上的暴露面的面积变得足够大，并且在前部中，空气轴承表面周围的磁体积变得足够大，并且后部的热膨胀量变得足够小。因此，从写入屏蔽层的露出面接收的磁通量在空气轴承表面中变得较少集中，并且写入屏蔽层由于受热的影响而具有阻力以过度膨胀。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式