公开(公告)号：US08810961B2

公开(公告)日：2014-08-19

申请号：US13548922

申请日：2012-07-13

申请人： Tomoko Taguchi ,  Yusuke Tomoda

发明人： Tomoko Taguchi ,  Yusuke Tomoda

IPC分类号： G11B5/17 ,  G11B5/11 ,  G11B5/235 ,  G11B5/31

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3123 ,  G11B19/247 ,  G11B2005/0024

摘要： According to one embodiment, a recording head includes a main pole, a trailing shield including a first connecting portion and a second connecting portion, and configured to form together with the main pole a first magnetic core, a leading shield including a first connecting portion connected to the main pole through a magnetic material and an end portion opposing to the end portion of the main pole through a non-magnetic material, and configured to form together with the main pole a second magnetic core, and first and second coils wound around the first and second magnetic cores, and a connection terminal configured to flow a current through the main pole, non-magnetic conductive layer, and trailing shield.

摘要翻译： 根据一个实施例，记录头包括主极，后屏蔽，包括第一连接部分和第二连接部分，并且被配置为与主极一起形成第一磁芯，所述前屏蔽包括第一连接部分连接 通过非磁性材料通过磁性材料和与主极端部相对的端部连接到主极，并且被配置为与主极一起形成第二磁芯，以及缠绕在主极上的第一和第二线圈 第一和第二磁芯，以及被配置为使电流流经主极，非磁性导电层和后屏蔽的连接端子。

公开(公告)号：US08730616B2

公开(公告)日：2014-05-20

申请号：US13585285

申请日：2012-08-14

申请人： Kenichiro Yamada ,  Yusuke Tomoda ,  Tomoko Taguchi ,  Katsuhiko Koui

发明人： Kenichiro Yamada ,  Yusuke Tomoda ,  Tomoko Taguchi ,  Katsuhiko Koui

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/23 ,  G11B5/3146 ,  G11B5/3163 ,  G11B2005/0024

摘要： According to one embodiment, a magnetic recording head includes a main pole, a trailing shield opposing the main pole with a write gap therebetween, and a high-frequency oscillator between a distal end portion of the main pole and the trailing shield configured to produce a high-frequency magnetic field. The high-frequency oscillator includes a lower end surface facing the recording medium and an upper end surface substantially parallel to the lower end surface. The width of the lower end surface in a track-width direction is smaller than that of the upper end surface.

摘要翻译： 根据一个实施例，磁记录头包括主极，与主极相对的后屏蔽件，其间具有写入间隙，以及在主极的远端部分和后屏蔽件之间的高频振荡器，其被配置为产生 高频磁场。 高频振荡器包括面向记录介质的下端表面和基本上平行于下端表面的上端表面。 下端面在轨道宽度方向上的宽度小于上端面的宽度。

公开(公告)号：US20130016441A1

公开(公告)日：2013-01-17

申请号：US13548922

申请日：2012-07-13

申请人： Tomoko Taguchi ,  Yusuke Tomoda

发明人： Tomoko Taguchi ,  Yusuke Tomoda

IPC分类号： G11B5/265 ,  G11B21/02 ,  G11B17/02

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3123 ,  G11B19/247 ,  G11B2005/0024

摘要： According to one embodiment, a recording head includes a main pole, a trailing shield including a first connecting portion and a second connecting portion, and configured to form together with the main pole a first magnetic core, a leading shield including a first connecting portion connected to the main pole through a magnetic material and an end portion opposing to the end portion of the main pole through a non-magnetic material, and configured to form together with the main pole a second magnetic core, and first and second coils wound around the first and second magnetic cores, and a connection terminal configured to flow a current through the main pole, non-magnetic conductive layer, and trailing shield.

摘要翻译： 根据一个实施例，记录头包括主极，后屏蔽，包括第一连接部分和第二连接部分，并且被配置为与主极一起形成第一磁芯，前导屏蔽包括连接到第一连接部分的第一连接部分 通过非磁性材料通过磁性材料和与主极端部相对的端部连接到主极，并且被配置为与主极一起形成第二磁芯，以及缠绕在主极上的第一和第二线圈 第一和第二磁芯，以及被配置为使电流流经主极，非磁性导电层和后屏蔽的连接端子。

公开(公告)号：US08773818B2

公开(公告)日：2014-07-08

申请号：US13607048

申请日：2012-09-07

申请人： Tomoko Taguchi ,  Takuya Matsumoto

发明人： Tomoko Taguchi ,  Takuya Matsumoto

IPC分类号： G11B5/127

CPC分类号： G11B5/314 ,  G11B5/1278 ,  G11B5/23 ,  G11B5/3146 ,  G11B2005/0024

摘要： A magnetic recording head includes a main magnetic pole generating a recording magnetic field, a trailing shield, a recording coil generating a magnetic field and a high frequency oscillator. The trailing shield includes a magnetic region including a gap side end surface facing a write gap and a nonmagnetic film arranged in the vicinity of the write gap in the trailing shield, and within a plane including track width direction centers of the main magnetic pole and the high frequency oscillator and being perpendicular to a recording layer of a recording medium, a film thickness of the nonmagnetic film along a track moving direction is substantially equivalent to or more than a half of a distance from the gap side end surface to the nonmagnetic film.

摘要翻译： 磁记录头包括产生记录磁场的主磁极，尾屏蔽，产生磁场的记录线圈和高频振荡器。 尾部屏蔽包括包括面向写入间隙的间隙侧端面和布置在后屏蔽中的写入间隙附近的非磁性膜的磁性区域，并且在包括主磁极的轨道宽度方向中心和 高频振荡器并且垂直于记录介质的记录层，非磁性膜沿轨道移动方向的膜厚基本上等于或大于从间隙侧端面到非磁性膜的距离的一半。

公开(公告)号：US08705204B2

公开(公告)日：2014-04-22

申请号：US13591012

申请日：2012-08-21

申请人： Tomoko Taguchi ,  Kenichiro Yamada ,  Katsuhiko Koui ,  Tomomi Funayama ,  Norihito Fujita

发明人： Tomoko Taguchi ,  Kenichiro Yamada ,  Katsuhiko Koui ,  Tomomi Funayama ,  Norihito Fujita

IPC分类号： G11B5/31

CPC分类号： G11B5/3116 ,  G11B2005/0002

摘要： According to one embodiment, a main pole of a recording head includes a first magnetic pole layer and a second magnetic pole layer laminated on the trailing side of the first magnetic pole layer. The first magnetic pole layer includes a tapered portion and a first tip portion. The second magnetic pole layer includes a tapered portion and a second tip portion. A width in a track direction of the second tip portion is smaller than that of the first tip portion. The high-frequency oscillator is between the second tip portion and the trailing shield and includes a width in the track direction substantially equal to the width in the track direction of the second tip portion, and a height of the first tip portion is taller than that of the second tip portion.

摘要翻译： 根据一个实施例，记录头的主极包括层叠在第一磁极层的后侧上的第一磁极层和第二磁极层。 第一磁极层包括锥形部分和第一末端部分。 第二磁极层包括锥形部分和第二尖端部分。 第二前端部的轨道方向的宽度小于第一前端部的宽度。 所述高频振荡器位于所述第二前端部与所述后屏蔽之间，并且包括所述轨道方向上的宽度大致等于所述第二前端部的轨道方向的宽度，所述第一前端部的高度高于所述第二前端部的高度。 的第二尖端部分。

公开(公告)号：US20120182646A1

公开(公告)日：2012-07-19

申请号：US13431004

申请日：2012-03-27

申请人： Tomoko Taguchi ,  Tomomi Funayama ,  Yuka Aoyagi ,  Katsuhiko Koui

发明人： Tomoko Taguchi ,  Tomomi Funayama ,  Yuka Aoyagi ,  Katsuhiko Koui

IPC分类号： G11B5/127 ,  G11B5/54 ,  G11B5/11

CPC分类号： G11B5/3143 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

摘要： According to one embodiment, a perpendicular magnetic recording head includes a main pole which generates a recording magnetic field, a return pole which forms a closed magnetic circuit for the recording magnetic field, and a side shield magnetically spaced from the main pole in a cross-track direction in which a point on a trailing edge of the side shield which is closest to the main pole is positioned on a leading side of a trailing edge of the main pole.

摘要翻译： 根据一个实施例，垂直磁记录头包括产生记录磁场的主极，形成用于记录磁场的闭合磁路的返回极，以及在横截面中与主极磁隔离的侧屏蔽， 轨道方向，其中最靠近主极的侧护板的后缘上的点位于主杆的后缘的前侧。

公开(公告)号：US20110242694A1

公开(公告)日：2011-10-06

申请号：US12984531

申请日：2011-01-04

申请人： Tomoko Taguchi

发明人： Tomoko Taguchi

IPC分类号： G11B5/17 ,  G11B5/09

CPC分类号： G11B5/3146 ,  G11B5/1278 ,  G11B5/3123 ,  G11B2005/0005

摘要： According to one embodiment, a magnetic head for perpendicular recording includes a first magnetic core includes a main pole configured to produce a recording magnetic field, and a return pole configured to reflux magnetic flux from the main pole to form a magnetic circuit in conjunction with the main pole, a first coil configured to excite magnetic flux in the magnetic circuit, side shields arranged individually on opposite sides of the main pole transversely relative to a track so as to be magnetically separated from the main pole and formed integrally with the return pole, a second magnetic core configured to form a physically closed magnetic path, a part of which comprises the return pole, and a second coil wound around the second magnetic core and configured to excite magnetic flux in the closed magnetic path.

摘要翻译： 根据一个实施例，用于垂直记录的磁头包括：第一磁芯，包括被配置为产生记录磁场的主极;以及返回极，其被配置为从主极返回磁通量，以形成磁路， 主极，被配置为激励磁路中的磁通量的第一线圈，相对于轨道横向地分别设置在主极的相对侧上的侧屏蔽，以与主极磁性分离并与返回极一体地形成， 第二磁芯，被配置为形成物理闭合的磁路，其一部分包括所述返回极;以及第二线圈，缠绕在所述第二磁芯上并被配置为激发所述闭合磁路中的磁通量。

公开(公告)号：US20070279714A1

公开(公告)日：2007-12-06

申请号：US11645036

申请日：2006-12-26

申请人： Ryosuke Higashikata ,  Akihiro Ito ,  Yasunari Kishimoto ,  Tomoko Taguchi

发明人： Ryosuke Higashikata ,  Akihiro Ito ,  Yasunari Kishimoto ,  Tomoko Taguchi

IPC分类号： G03F3/08

CPC分类号： H04N1/6058

摘要： A color conversion device for color-converting an input image signal in an input color reproduction region of a source device, in a predetermined color space, by mapping the input image signal into an output color reproduction region of a destination device in the predetermined color space, comprising: a calculation portion for calculating a mapping destination in the output color reproduction region of a pre-specified characteristic point in the input color reproduction region; a correction portion for correcting the output color reproduction region such that a region including a saturation higher than the calculated mapping destination is eliminated; and a mapping portion for mapping the input image signal into the corrected output color reproduction region, is provided.

摘要翻译： 一种颜色转换装置，用于通过将输入图像信号映射到预定色彩空间中的目的地装置的输出颜色再现区域中，在预定色彩空间中对源装置的输入彩色再现区域中的输入图像信号进行颜色转换 包括：计算部分，用于计算输入颜色再现区域中预定特征点的输出颜色再现区域中的映射目的地; 校正部分，用于校正输出颜色再现区域，使得消除包括高于计算的映射目的地的饱和度的区域; 并且提供用于将输入图像信号映射到校正输出颜色再现区域的映射部分。

公开(公告)号：US20060203380A1

公开(公告)日：2006-09-14

申请号：US11372276

申请日：2006-03-10

申请人： Tomoko Taguchi

发明人： Tomoko Taguchi

IPC分类号： G11B5/127

CPC分类号： G11B5/1278

摘要： According to one embodiment, a perpendicular magnetic disk apparatus has a perpendicular recording medium including a soft underlayer and a perpendicular recording layer, and a write head including a main pole, a return yoke and an exciting coil, in which a product of a magnetostriction constant λ [E-6] of the main pole and a stress S [MPa] acting on the main pole, and a coercivity Hc [Oe] of the medium meet the following formula: λ×S>30,000,000/Hc

摘要翻译： 根据一个实施例，垂直磁盘装置具有包括软底层和垂直记录层的垂直记录介质，以及包括主极，返回轭和励磁线圈的写入头，其中磁致伸缩常数 主极的λ[E-6]和作用在主极上的应力S [MPa]和介质的矫顽力Hc [Oe]满足下列公式：<？in-line-formula description =“In- 行公式“end =”lead“？> lambdaxS> 30,000,000 / Hc <？in-line-formula description =”In-line Formulas“end =”tail“？>

公开(公告)号：US20060171068A1

公开(公告)日：2006-08-03

申请号：US11342600

申请日：2006-01-31

申请人： Tomoko Taguchi

发明人： Tomoko Taguchi

IPC分类号： G11B5/127

CPC分类号： G11B5/1278

摘要： According to one embodiment, a perpendicular magnetic head has a write head including a main pole, a return yoke and a recording coil, a read head including a magnetoresistive film and a pair of shields arranged so as to sandwich the magnetoresistive film, and a soft magnetic film arranged so as to surround side faces and a top face of the read head.

摘要翻译： 根据一个实施例，垂直磁头具有包括主极，回转轭和记录线圈的写入头，包括磁阻膜的读取头和布置成夹住磁阻膜的一对屏蔽，以及软的 磁膜被布置为围绕读取头的侧面和顶面。