公开(公告)号：US20110242701A1

公开(公告)日：2011-10-06

申请号：US13016687

申请日：2011-01-28

申请人： Masaya Ohtake ,  Tomoko Taguchi ,  Masayuki Takagishi ,  Kenichiro Yamada ,  Katsuhiko Koui

发明人： Masaya Ohtake ,  Tomoko Taguchi ,  Masayuki Takagishi ,  Kenichiro Yamada ,  Katsuhiko Koui

IPC分类号： G11B5/23 ,  G11B17/02

CPC分类号： G11B5/1278 ,  B82Y10/00 ,  G11B5/02 ,  G11B5/314 ,  G11B5/3146 ,  G11B5/746 ,  G11B5/82 ,  G11B2005/0024

摘要： According to one embodiment, a magnetic head includes a main pole configured to apply a perpendicular recording magnetic field to a recording layer of a recording medium, a return pole opposed to the trailing side of the main pole with a write gap therebetween and configured to reflux magnetic flux from the main pole to form a magnetic circuit in conjunction with the main pole, a coil configured to excite magnetic flux in the magnetic circuit includes the main pole and the return pole, a plurality of high-frequency oscillatory elements individually interposed between the main pole and the return pole, includes a plurality of magnetic films different in magnetic resonance frequency, and configured to individually apply high-frequency magnetic fields to the recording medium, and an electrical circuit configured to energize the high-frequency oscillatory elements.

摘要翻译： 根据一个实施例，磁头包括：主极，被配置为向记录介质的记录层施加垂直记录磁场;与主极的后侧相对的返回极，其间具有写入间隙，并且被配置为回流 来自主极的磁通量与主极结合形成磁路，构成为激励磁路中的磁通量的线圈包括主极和返回极，多个高频振荡元件分别插入在 主极和返回极包括不同于磁共振频率的多个磁膜，并且被配置为分别向记录介质施加高频磁场，以及电路，其被配置为对高频振荡元件通电。

公开(公告)号：US08605386B1

公开(公告)日：2013-12-10

申请号：US13689097

申请日：2012-11-29

申请人： Masaya Ohtake ,  Tomoko Taguchi

发明人： Masaya Ohtake ,  Tomoko Taguchi

IPC分类号： G11B5/31

CPC分类号： G11B5/3116 ,  G11B5/3123

摘要： According to one embodiment, a magnetic recording head in a magnetic disk drive with a recording medium includes a magnetic core including a plurality of magnetic poles which form a closed magnetic path, and a recording coil wound around a part of the magnetic core and produces a magnetic field to the magnetic core. The magnetic core includes a write gap formed of a nonmagnetic material in a disk-facing surface of the recording head, a magnetic gap portion located at a position off from the disk-facing surface and magnetically isolated, and a nonmagnetic material in the at least one magnetic gap portion. The recording coil is wound around the nonmagnetic material in the magnetic gap portion.

摘要翻译： 根据一个实施例，具有记录介质的磁盘驱动器中的磁记录头包括：磁芯，其包括形成闭合磁路的多个磁极;以及缠绕在磁芯的一部分上的记录线圈， 磁场到磁芯。 磁芯包括由记录头的面向盘的表面中的非磁性材料形成的写入间隙，位于离开盘的表面并且被磁隔离的位置的磁隙部分，以及至少在非磁性材料中的非磁性材料 一个磁隙部分。 记录线圈缠绕在磁隙部分中的非磁性材料上。

公开(公告)号：US20130176837A1

公开(公告)日：2013-07-11

申请号：US13419397

申请日：2012-03-13

申请人： Toshiyuki Ikai ,  Hiroshi Isokawa ,  Masaya Ohtake ,  Tomoko Taguchi

发明人： Toshiyuki Ikai ,  Hiroshi Isokawa ,  Masaya Ohtake ,  Tomoko Taguchi

IPC分类号： G11B11/00

CPC分类号： G11B5/1278 ,  G11B5/3136 ,  G11B5/314 ,  G11B2005/0021

摘要： According to one embodiment, there is provided a magnetic recording head which records information on a magnetic recording medium, including an ABS surface, a near-field light generating unit, a heat conducting unit, and a heat absorbing unit. The ABS surface is opposed to the magnetic recording medium. The near-field light generating unit is disposed on the ABS surface. The heat conducting unit is formed by a heat conductor disposed in contact with the near-field light generating unit. The heat absorbing unit is disposed in contact with the heat conducting unit adjacently to the near-field light generating unit in a direction along the ABS surface.

摘要翻译： 根据一个实施例，提供了一种在包括ABS表面，近场光产生单元，导热单元和吸热单元的磁记录介质上记录信息的磁记录头。 ABS表面与磁记录介质相对。 近场光产生单元设置在ABS表面上。 导热单元由与近场光产生单元接触设置的导热体形成。 吸热单元与沿着ABS表面的方向与近场光产生单元相邻地与导热单元接触。

公开(公告)号：US08274757B2

公开(公告)日：2012-09-25

申请号：US13224858

申请日：2011-09-02

申请人： Takuya Matsumoto ,  Tomoko Taguchi ,  Masaya Ohtake

发明人： Takuya Matsumoto ,  Tomoko Taguchi ,  Masaya Ohtake

IPC分类号： G11B5/31

CPC分类号： G11B5/3123 ,  G11B5/1278 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/315

摘要： According to one embodiment, a recording head includes a main pole, a trailing core, a first coil wound around the trailing core, a leading core, and a second coil wound around the leading core. The trailing core includes a return pole opposed to a trailing side of the main pole with a write gap therebetween, and side shields arranged individually on opposite sides of the main pole transversely relative to tracks and magnetically separated from the main pole at a distance not more than double a track pitch of the recording medium. The leading core includes a junction opposed to a leading side of the main pole with a gap therebetween and joined to the side shields with a width of 20 μm or less transversely relative to the tracks and a connecting portion joined to the main pole in a position off the recording medium.

摘要翻译： 根据一个实施例，记录头包括主极，后芯，围绕后芯缠绕的第一线圈，引导芯和缠绕在引导芯上的第二线圈。 牵引芯包括与主极的后侧相对的返回极，其间具有写入间隙，并且侧屏蔽分别相对于轨道横向地布置在主极的相对侧上，并且与主极磁性分离不远 比记录介质的轨道间距翻倍。 引线芯包括与主极的前导面相对的接合部，其间具有间隙，并且相对于轨道横向地与宽度为20μm或更小的侧面屏蔽件接合，并且连接部分连接到主极位置 关闭记录介质。

公开(公告)号：US08593916B2

公开(公告)日：2013-11-26

申请号：US13419397

申请日：2012-03-13

申请人： Toshiyuki Ikai ,  Hiroshi Isokawa ,  Masaya Ohtake ,  Tomoko Taguchi

发明人： Toshiyuki Ikai ,  Hiroshi Isokawa ,  Masaya Ohtake ,  Tomoko Taguchi

IPC分类号： G11B11/00

CPC分类号： G11B5/1278 ,  G11B5/3136 ,  G11B5/314 ,  G11B2005/0021

摘要： According to one embodiment, there is provided a magnetic recording head which records information on a magnetic recording medium, including an ABS surface, a near-field light generating unit, a heat conducting unit, and a heat absorbing unit. The ABS surface is opposed to the magnetic recording medium. The near-field light generating unit is disposed on the ABS surface. The heat conducting unit is formed by a heat conductor disposed in contact with the near-field light generating unit. The heat absorbing unit is disposed in contact with the heat conducting unit adjacently to the near-field light generating unit in a direction along the ABS surface.

摘要翻译： 根据一个实施例，提供了一种在包括ABS表面，近场光产生单元，导热单元和吸热单元的磁记录介质上记录信息的磁记录头。 ABS表面与磁记录介质相对。 近场光产生单元设置在ABS表面上。 导热单元由与近场光产生单元接触设置的导热体形成。 吸热单元与沿着ABS表面的方向与近场光产生单元相邻地与导热单元接触。

公开(公告)号：US20120182644A1

公开(公告)日：2012-07-19

申请号：US13224858

申请日：2011-09-02

申请人： Takuya MATSUMOTO ,  Tomoko Taguchi ,  Masaya Ohtake

发明人： Takuya MATSUMOTO ,  Tomoko Taguchi ,  Masaya Ohtake

IPC分类号： G11B5/17 ,  G11B5/60 ,  G11B17/02

CPC分类号： G11B5/3123 ,  G11B5/1278 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/315

摘要： According to one embodiment, a recording head includes a main pole, a trailing core, a first coil wound around the trailing core, a leading core, and a second coil wound around the leading core. The trailing core includes a return pole opposed to a trailing side of the main pole with a write gap therebetween, and side shields arranged individually on opposite sides of the main pole transversely relative to tracks and magnetically separated from the main pole at a distance not more than double a track pitch of the recording medium. The leading core includes a junction opposed to a leading side of the main pole with a gap therebetween and joined to the side shields with a width of 20 μm or less transversely relative to the tracks and a connecting portion joined to the main pole in a position off the recording medium.

摘要翻译： 根据一个实施例，记录头包括主极，后芯，围绕后芯缠绕的第一线圈，引导芯和缠绕在引导芯上的第二线圈。 牵引芯包括与主极的后侧相对的返回极，其间具有写入间隙，并且侧屏蔽分别相对于轨道横向地布置在主极的相对侧上，并且与主极磁性分离不远 比记录介质的轨道间距翻倍。 引线芯包括与主极的前导面相对的接合部，其间具有间隙，并且相对于轨道横向地与宽度为20μm或更小的侧面屏蔽件接合，并且连接部分连接到主极位置 关闭记录介质。

公开(公告)号：US20100265616A1

公开(公告)日：2010-10-21

申请号：US12761109

申请日：2010-04-15

申请人： Masaya Ohtake ,  Ryoji Ito

发明人： Masaya Ohtake ,  Ryoji Ito

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  B82Y10/00 ,  G11B5/1278 ,  G11B5/743 ,  G11B5/746 ,  G11B5/82

摘要： According to one embodiment, a magnetic recording head includes a flying surface and an exposed surface exposed on the flying surface. The exposed surface is defined by oblique sides and a lower side of a trapezoid having an upper side on the trailing side, and a contour line. The lower side on the leading side extends in parallel to the upper side and is shorter than the upper side. The contour line extends from one end to the other end of the upper side and rises from the upper side towards the trailing side between extended lines of the oblique sides.

摘要翻译： 根据一个实施例，磁记录头包括飞行表面和暴露在飞行表面上的暴露表面。 暴露表面由斜边限定，梯形的下侧在后侧具有上侧，并且具有轮廓线。 前侧的下侧平行于上侧延伸，并且比上侧短。 轮廓线从上侧的一端延伸到另一端，并且在斜边的延伸线之间从上侧向后侧上升。

公开(公告)号：US08670202B2

公开(公告)日：2014-03-11

申请号：US13542128

申请日：2012-07-05

申请人： Hiroshi Isokawa ,  Masaya Ohtake ,  Toshiyuki Ikai

发明人： Hiroshi Isokawa ,  Masaya Ohtake ,  Toshiyuki Ikai

IPC分类号： G11B11/105 ,  G11B5/02

CPC分类号： G11B5/3133 ,  G11B2005/0021

摘要： According to one embodiment, a magnetic head includes a main pole, a write shield pole on a trailing side of the main pole, a recording coil, and a temperature control element unit. The temperature control element unit includes a first electrode on a leading side of the main pole and on both sides of a track of the main pole, a second electrode on the leading side of the main pole and on a track center of the main pole, an N-type semiconductor and a P-type semiconductor connected to the first and second electrodes, and a wiring portion which applies a current via the second electrode, N-type semiconductor, first electrode, P-type semiconductor, and second electrode. The first and second electrodes form a heat absorbing portion and a heat radiating portion.

摘要翻译： 根据一个实施例，磁头包括主极，主极后侧的写屏蔽极，记录线圈和温度控制元件单元。 温度控制元件单元包括在主极的前侧和主极的轨道的两侧上的第一电极，在主极的前侧上的第二电极和主极的轨道中心， 连接到第一和第二电极的N型半导体和P型半导体，以及经由第二电极N型半导体，第一电极，P型半导体和第二电极施加电流的布线部分。 第一和第二电极形成吸热部分和散热部分。

公开(公告)号：US20090195911A1

公开(公告)日：2009-08-06

申请号：US12247629

申请日：2008-10-08

申请人： Motomichi Shibano ,  Masaya Ohtake

发明人： Motomichi Shibano ,  Masaya Ohtake

IPC分类号： G11B21/02 ,  G11B5/127

CPC分类号： G11B20/10009 ,  B82Y10/00 ,  G11B5/3123 ,  G11B5/3133 ,  G11B5/743 ,  G11B5/82 ,  G11B20/10046 ,  G11B20/10222 ,  G11B20/10425 ,  G11B20/14 ,  G11B2005/0005 ,  G11B2220/2516

摘要： A magnetic recording device includes a patterned media magnetic recording medium where multiple tracks are arranged for radial direction in a concentric manner, the tracks each being formed by arranging multiple recording dots. The recording dots are each made of an isolated magnetic material and arranged in a rotational direction. The magnetic recording device further includes a magnetic head. The magnetic head includes: a main magnetic pole that faces the magnetic recording medium; a magnetic field generation coil that generates magnetic field to be transmitted to the magnetic recording medium through the main magnetic pole; a return yoke that receives the magnetic flux transmitted to the magnetic recording medium from the main magnetic pole and returns the magnetic flux thus received to the magnetic field generation coil; and a search coil that detects a change in magnetic flux passing through the return yoke.

摘要翻译： 磁记录装置包括图案化介质磁记录介质，其中多个轨道以同心方式被放置用于径向方向，每个磁道通过布置多个记录点而形成。 记录点分别由隔离的磁性材料制成并沿旋转方向布置。 磁记录装置还包括磁头。 磁头包括：面对磁记录介质的主磁极; 磁场产生线圈，其通过主磁极产生要传送到磁记录介质的磁场; 接收从主磁极传递到磁记录介质的磁通并将如此接收的磁通返回到磁场产生线圈的返回磁轭; 以及检测线圈，其检测通过返回轭的磁通量的变化。

公开(公告)号：US07532429B2

公开(公告)日：2009-05-12

申请号：US12030446

申请日：2008-02-13

申请人： Hironori Teguri ,  Masaya Ohtake

发明人： Hironori Teguri ,  Masaya Ohtake

IPC分类号： G11B5/596

CPC分类号： G11B5/59627

摘要： A write-head positioning method includes steps of positioning a write head on a first track of a storage medium on the basis of a servo signal and writing a signal on the first track, positioning the write head on second and third tracks located adjacent to opposite sides of the first track on the basis of servo signals and writing signals on the second track and the third track, positioning the read head at positions on the first track that are set at a predetermined interval in a track-width direction, and reading a signal from the first track at each position thereof, determining a signal profile that indicates a fluctuation of output values of the signals read at the respective positions on the first track, and detecting a peak position indicating a maximum output value in the determined signal profile.

摘要翻译： 写头定位方法包括以下步骤：基于伺服信号将写头定位在存储介质的第一轨道上，并将信号写在第一轨道上，将写入头定位在相邻的相邻的第二和第三磁道上 基于第二轨道和第三轨道上的伺服信号和写入信号的第一轨道的侧面，将读取头定位在沿轨道宽度方向以预定间隔设置的第一轨道上的位置，并读取 信号，确定表示在第一磁道上的各个位置读取的信号的输出值的波动的信号曲线，以及检测指示所确定的信号分布中的最大输出值的峰值位置。