公开(公告)号：US20130215532A1

公开(公告)日：2013-08-22

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： G11B5/17

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，并且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：US20130250456A1

公开(公告)日：2013-09-26

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 ,  G11B5/48

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：US20130271869A1

公开(公告)日：2013-10-17

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 ,  G11B17/02

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，后屏蔽，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：US20120243122A1

公开(公告)日：2012-09-27

申请号：US13404805

申请日：2012-02-24

申请人： Tomoko TAGUCHI ,  Hiroyuki HYODO

发明人： Tomoko TAGUCHI ,  Hiroyuki HYODO

IPC分类号： G11B5/127 ,  B32B9/00 ,  G11B5/667 ,  G11B5/72

CPC分类号： G11B5/82 ,  G11B5/72

摘要： According to one embodiment, a perpendicular magnetic recording medium characterized by includes: a substrate; an undercoat layer formed on the substrate and made of a soft magnetic material; a recording layer formed on the undercoat layer and having an easy axis of magnetization in a direction that is approximately perpendicular to a surface of the perpendicular magnetic recording medium; and a protective layer which is formed on the recording layer and in which soft magnetic particles are mixed.

摘要翻译： 根据一个实施例，一种垂直磁记录介质，其特征在于包括：基板; 形成在基板上并由软磁性材料制成的底涂层; 记录层，其形成在所述底涂层上并且在大致垂直于所述垂直磁记录介质的表面的方向上具有容易的磁化轴; 以及在记录层上形成的软磁性粒子混合的保护层。

公开(公告)号：US20130182352A1

公开(公告)日：2013-07-18

申请号：US13563468

申请日：2012-07-31

申请人： Takuya MATSUMOTO ,  Tomoko TAGUCHI

发明人： Takuya MATSUMOTO ,  Tomoko TAGUCHI

IPC分类号： G11B5/265 ,  G11B5/60

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

摘要： According to one embodiment, a recording head includes a main pole formed of a soft magnetic material, a write shield pole formed of a soft magnetic material and on a trailing side of the main pole with a write gap, and side shields on both sides of the main pole in a track width direction and including nonmagnetic cavities formed of a nonmagnetic material in inner portions of the side shields. The side shields includes surfaces formed of a soft magnetic material and configured to be between a distal end portion of the main pole and the nonmagnetic cavity and between the recording medium and the nonmagnetic cavity.

摘要翻译： 根据一个实施例，记录头包括由软磁材料形成的主极，由软磁材料形成的写屏蔽极和具有写间隙的主极的后侧，以及侧屏蔽 所述主极在轨道宽度方向上并且包括由所述侧屏蔽件的内部部分中的非磁性材料形成的非磁性空腔。 侧面屏蔽包括由软磁性材料形成并被构造成在主极的远端部分与非磁性腔之间以及在记录介质和非磁性腔之间的表面。

公开(公告)号：US20100188783A1

公开(公告)日：2010-07-29

申请号：US12618617

申请日：2009-11-13

申请人： Tomoko TAGUCHI

发明人： Tomoko TAGUCHI

IPC分类号： G11B5/33

CPC分类号： G11B5/3146 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

摘要： According to one embodiment, a magnetic head of a disk apparatus includes a main magnetic pole, a recording coil, a return magnetic pole, and a side shield provided on both sides of the main magnetic pole in the width direction, apart magnetically away from the main magnetic pole. The side shield includes on each side of the main magnetic pole a first shield edge which extends from a leading side end face of the return magnetic pole toward the main magnetic pole and opposes the main magnetic pole in at least a part with a gap smaller than the write gap, and a second shield edge which extends from the first shield edge in a direction opposite to the leading side end face of the return magnetic pole and opposes the main magnetic pole with a gap larger than the write gap.

摘要翻译： 根据一个实施例，磁盘装置的磁头包括主磁极，记录线圈，返回磁极和设置在主磁极的宽度方向两侧的侧屏蔽，磁性远离 主磁极。 侧面屏蔽包括在主磁极的每一侧上的第一屏蔽边缘，其从返回磁极的前侧端面朝向主磁极延伸，并且至少部分地与主磁极相对，间隙小于 所述写入间隙和从所述第一屏蔽边缘沿与所述返回磁极的所述前侧端面相反的方向延伸的第二屏蔽边缘，并且与所述主磁极相对，所述间隙大于所述写入间隙。

公开(公告)号：US20120092791A1

公开(公告)日：2012-04-19

申请号：US13174647

申请日：2011-06-30

申请人： Tomoko TAGUCHI ,  Yuichi Yamada ,  Akihiko Takeo

发明人： Tomoko TAGUCHI ,  Yuichi Yamada ,  Akihiko Takeo

IPC分类号： G11B5/02

CPC分类号： G11B5/314 ,  G11B5/3133 ,  G11B5/6088 ,  G11B2005/0021

摘要： According to one embodiment, a head gimbal assembly includes a magnetic head for perpendicular, a suspension supporting the magnetic head, and a heating module configured to locally heat a recording area of the recording medium. A head section of the magnetic head includes a magnetic core including a main pole and a return pole forming a magnetic circuit in conjunction with the main pole, a coil configured to excite magnetic flux in the magnetic circuit, and a thermal conductor having thermal conductivity higher than thermal conductivity of the recording medium and including a heat absorbing portion configured to remove heat from the recording medium, and a contact portion configured to contact airflow produced, as the recording medium rotates, at a position other than a facing surface of a slider opposed to the recording medium and radiate heat.

摘要翻译： 根据一个实施例，头部万向架组件包括用于垂直的磁头，支撑磁头的悬架以及被配置为局部加热记录介质的记录区域的加热模块。 磁头的头部包括：磁芯，包括主极和形成与主极结合的磁路的返回极;配置成激励磁路中的磁通的线圈，以及导热系数更高的导热体 并且包括被配置为从记录介质移除热量的吸热部分，以及接触部分，其被配置为接触作为记录介质旋转的气流，所述接触部分在与滑块相对的相对表面以外的位置处 到记录介质并辐射热量。

公开(公告)号：US20100315747A1

公开(公告)日：2010-12-16

申请号：US12759607

申请日：2010-04-13

申请人： Takuya MATSUMOTO ,  Tomoko TAGUCHI

发明人： Takuya MATSUMOTO ,  Tomoko TAGUCHI

IPC分类号： G11B21/16

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： According to an embodiment, a magnetic head for perpendicular recording, includes a slider including a facing surface opposed to a recording medium, and a head portion on the slider and configured to perform information processing for the recording medium. The head portion includes a main pole configured to apply a perpendicular recording magnetic field to the recording medium, a recording coil configured to excite the main pole, a write shield pole opposing the main pole across a write gap, side shields arranged individually on opposite sides of the main pole in a track width direction and magnetically isolated from the main pole, and low-flux-density layers formed of a material having a saturation magnetic flux density lower than that of the main pole, located between the main pole and the side shields, and configured to regulate magnetic fluxes flowing from the main pole to the side shields.

摘要翻译： 根据一个实施例，一种用于垂直记录的磁头包括一个滑块，它包括一个与记录介质相对的面对表面，以及一个位于滑块上的头部，用于对记录介质执行信息处理。 头部包括被配置为向记录介质施加垂直记录磁场的主极，被配置为激励主极的记录线圈，跨越写间隙的与主极相对的写屏蔽极，分别布置在相对侧的侧屏蔽 的主磁极与磁极隔离的磁极宽度方向上的主磁极和由主极和主体之间的主磁极的饱和磁通密度低的材料形成的低通量密度层 屏蔽，并且被配置为调节从主极流到侧屏的磁通量。

公开(公告)号：US20100157473A1

公开(公告)日：2010-06-24

申请号：US12641180

申请日：2009-12-17

申请人： Yoshinobu FUCHIZAKI ,  Tomoko TAGUCHI ,  Yuka AOYAGI

发明人： Yoshinobu FUCHIZAKI ,  Tomoko TAGUCHI ,  Yuka AOYAGI

IPC分类号： G11B5/127

CPC分类号： G11B5/3123 ,  G11B5/3967

摘要： According to one embodiment, a magnetic disk drive includes a magnetic disk including a magnetic recording layer exhibiting perpendicular magnetic anisotropy, a write head including a core including a main pole and a plurality of return poles in a track direction and a direction other than the track direction with respect to the main pole, and a coil wound around corresponding to each return pole, and a read head including a magnetoresistive element and a pair of shields sandwiching the magnetoresistive element from front and rear in the track direction.

摘要翻译： 根据一个实施例，磁盘驱动器包括磁盘，磁盘包括具有垂直磁各向异性的磁记录层，写磁头包括磁芯，磁芯包括主磁极和磁道方向上的多个返回磁极以及轨道以外的方向 相对于主极的方向以及缠绕在每个返回极上的线圈，以及包括磁阻元件和一对屏蔽件的读取头，该磁屏蔽件沿轨道方向从前后夹入磁阻元件。

公开(公告)号：US20100157462A1

公开(公告)日：2010-06-24

申请号：US12641157

申请日：2009-12-17

申请人： Gaku KOIZUMI ,  Tomoko TAGUCHI

发明人： Gaku KOIZUMI ,  Tomoko TAGUCHI

IPC分类号： G11B15/18

CPC分类号： G11B5/1278 ,  G11B5/3123

摘要： According to one embodiment, a magnetic disk drive includes a magnetic disk to be subjected to perpendicular recording, a first pole core including a main pole configured to record signals on the magnetic disk, a first coil wound around the first pole core, a second pole core magnetically independent of the first pole core, tip ends of which are arranged on both sides of the main pole, a second coil wound around the second pole core, a read unit including an element configured to read data recorded on the magnetic disk, and a correction unit configured to correct a current phase difference between the first and second coils.

摘要翻译： 根据一个实施例，磁盘驱动器包括要进行垂直记录的磁盘，包括被配置为在磁盘上记录信号的主极的第一极芯，缠绕在第一极芯上的第一线圈，第二极点 磁芯，其独立于第一极芯，其末端设置在主极的两侧，缠绕在第二极芯上的第二线圈，包括被配置为读取记录在磁盘上的数据的元件的读取单元，以及 校正单元，被配置为校正第一和第二线圈之间的当前相位差。