公开(公告)号：US20150235659A1

公开(公告)日：2015-08-20

申请号：US14182956

申请日：2014-02-18

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Shigeki TANEMURA ,  Kazuki SATO ,  Tatsuya SHIMIZU

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Shigeki TANEMURA ,  Kazuki SATO ,  Tatsuya SHIMIZU

IPC分类号： G11B5/31 ,  G11B21/12

CPC分类号： G11B5/1278 ,  G11B5/3133 ,  G11B5/3136 ,  G11B5/315 ,  G11B5/607 ,  G11B21/12 ,  G11B2005/0021

摘要： A magnetic head includes a medium facing surface, a read head unit, a write head unit, and a protrusion device. The protrusion device causes part of the medium facing surface to protrude toward a recording medium. The read head unit has a first end face located in the medium facing surface and includes a first contact sensor for detecting contact of the first end face with the recording medium. The write head unit has a second end face located in the medium facing surface and includes a second contact sensor for detecting contact of the second end face with the recording medium. The first end face and the second end face are located at positions different from each other in a direction of travel of the recording medium.

摘要翻译： 磁头包括面向介质的表面，读取头单元，写入头单元和突出装置。 突起装置使介质面向表面的一部分朝向记录介质突出。 读头单元具有位于介质面对表面中的第一端面，并且包括用于检测第一端面与记录介质的接触的第一接触传感器。 写头单元具有位于介质面对表面中的第二端面，并且包括用于检测第二端面与记录介质的接触的第二接触传感器。 第一端面和第二端面位于记录介质的行进方向上彼此不同的位置。

公开(公告)号：US20130283601A1

公开(公告)日：2013-10-31

申请号：US13456932

申请日：2012-04-26

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Hironori ARAKI ,  Seiichiro TOMITA ,  Kazuki SATO ,  Shigeki TANEMURA ,  Tatsuya SHIMIZU

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Hironori ARAKI ,  Seiichiro TOMITA ,  Kazuki SATO ,  Shigeki TANEMURA ,  Tatsuya SHIMIZU

IPC分类号： G11B5/127 ,  B23P17/00

CPC分类号： G11B5/1278 ,  G11B5/1276 ,  G11B5/17 ,  G11B5/265 ,  G11B5/2651 ,  G11B5/2658 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/315 ,  G11B5/3153 ,  G11B5/3163 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method of manufacturing a magnetic head includes the step of forming an accommodation part and the step of forming a return path section. The return path section lies between a main pole and a top surface of a substrate, and connects a shield and part of the main pole away from a medium facing surface to each other so that a space through which part of a coil passes is defined. The accommodation part accommodates at least part of the return path section. The step of forming the return path section forms first to third portions simultaneously. The first portion is located closer to the top surface of the substrate than is the space. The second portion is located closer to the medium facing surface than is the space. The third portion is located farther from the medium facing surface than is the space.

摘要翻译： 制造磁头的方法包括形成容纳部的步骤和形成返回路径部的步骤。 返回路径部分位于基板的主极和顶表面之间，并且将屏蔽和主极的一部分远离介质相对表面彼此连接，从而限定线圈通过的空间。 容纳部分容纳返回路径部分的至少一部分。 形成返回路径部分的步骤同时形成第一至第三部分。 第一部分位于比空间更靠近衬底顶表面的位置。 第二部分比空间更靠近介质面向表面。 第三部分位于比介质相对表面更远离空间。

公开(公告)号：US20130176644A1

公开(公告)日：2013-07-11

申请号：US13344081

申请日：2012-01-05

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Hironori ARAKI ,  Shigeki TANEMURA ,  Kazuki SATO ,  Atsushi IIJIMA

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Hironori ARAKI ,  Shigeki TANEMURA ,  Kazuki SATO ,  Atsushi IIJIMA

IPC分类号： G11B5/17 ,  G11B5/127 ,  G11B5/48

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49021

摘要： A thin-film magnetic head is constructed such that a main magnetic pole layer, a write shield layer, a gap layer, a thin-film coil and a shield magnetic layer are laminated on a substrate. The thin-film magnetic head has a shield magnetic layer. This thin-film magnetic head has a hard guard frame layer surrounding an equidistant coil part, disposed at a position equidistant from the substrate, from outside and being in direct contact with almost a whole outside surface defining an outer shape of the equidistant coil part.

摘要翻译： 薄膜磁头被构造成使得主磁极层，写入屏蔽层，间隙层，薄膜线圈和屏蔽磁性层被层压在基板上。 薄膜磁头具有屏蔽磁性层。 该薄膜磁头具有围绕等离子体线圈部分的等距线圈部分的硬保护框架层，其设置在距离基板等距离的位置，并且与限定等距线圈部分的外部形状的几乎整个外表面直接接触。

公开(公告)号：US20120257304A1

公开(公告)日：2012-10-11

申请号：US13084168

申请日：2011-04-11

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Atsushi IIJIMA

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Atsushi IIJIMA

IPC分类号： G11B5/10

CPC分类号： G11B5/315 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/607

摘要： A magnetic head includes a coil, a main pole, a write shield, and first and second yoke layers. The first and second yoke layers are magnetically connected to the write shield and aligned along the direction of travel of a recording medium such that the main pole is interposed therebetween. The coil includes a winding portion of planar spiral shape that is formed in one or more layers. The magnetic head further includes: a first coupling part located away from the medium facing surface and magnetically coupling the main pole and the second yoke layer to each other; and a second coupling part located away from the medium facing surface and magnetically coupling the first yoke layer and the second yoke layer to each other without touching the main pole. The winding portion is wound around the first coupling part, and a part of the winding portion passes between the first and second coupling parts.

摘要翻译： 磁头包括线圈，主极，写入屏蔽以及第一和第二磁轭层。 第一和第二磁轭层磁性地连接到写入屏蔽并沿着记录介质的行进方向对准，使得主极插入其间。 线圈包括形成为一层或多层的平面螺旋形状的绕组部分。 磁头还包括：第一耦合部件，其远离介质面对表面并将主极和第二磁轭层彼此磁耦合; 以及第二耦合部件，其远离所述介质面对表面并且将所述第一磁轭层和所述第二磁轭层磁耦合到彼此而不接触所述主极。 卷绕部缠绕在第一连接部上，卷绕部的一部分在第一和第二连接部之间通过。

公开(公告)号：US20120170156A1

公开(公告)日：2012-07-05

申请号：US12982349

申请日：2010-12-30

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Atsushi IIJIMA

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Atsushi IIJIMA

IPC分类号： G11B5/127

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

摘要： A magnetic head includes: a coil; a main pole; a first shield disposed backward of the main pole along a direction of travel of a recording medium; a first return path section connecting the first shield to the main pole; a second shield disposed forward of the main pole along the direction of travel of the recording medium; and a second return path section connecting the second shield to the main pole. An interface between the first return path section and the main pole has an end closest to a medium facing surface, and an interface between the second return path section and the main pole has an end closest to the medium facing surface, the latter being closer to the medium facing surface than the former. The second return path section includes a yoke layer located away from the medium facing surface and in contact with the main pole. The coil includes at least one coil element that passes between the second shield and the yoke layer.

摘要翻译： 磁头包括：线圈; 主杆 第一屏蔽件，沿着记录介质的行进方向设置在所述主极的后方; 将第一屏蔽件连接到主极的第一返回路径部分; 第二屏蔽件，其沿着记录介质的行进方向设置在主极的前方; 以及将第二屏蔽件连接到主极的第二返回路径部分。 第一返回路径部分和主极之间的界面具有最靠近介质面的表面的端部，并且第二返回路径部分和主极之间的界面具有最靠近介质面向表面的一端，后者更靠近 中等面向表面比前者。 第二返回路径部分包括位于远离介质面向表面并与主极接触的磁轭层。 线圈包括在第二屏蔽和轭层之间通过的至少一个线圈元件。

公开(公告)号：US20160275970A1

公开(公告)日：2016-09-22

申请号：US14664466

申请日：2015-03-20

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Yukinori IKEGAWA ,  Hironori ARAKI ,  Shigeki TANEMURA

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Yukinori IKEGAWA ,  Hironori ARAKI ,  Shigeki TANEMURA

IPC分类号： G11B5/31 ,  G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/10 ,  G11B5/1278 ,  G11B5/17 ,  G11B5/3163

摘要： A magnetic head includes a coil, a main pole, a write shield, a gap section, and a return path section. The main pole has a top surface including an inclined portion and a flat portion. The coil includes a specific coil element. The specific coil element has a front end portion, and an inclined surface contiguous with the front end portion. The write shield includes a top shield layer located on the front side in the direction of travel of a recording medium relative to the main pole, and located closer to a medium facing surface than the specific coil element. The top shield layer is located on the rear side in the direction of travel of the recording medium relative to an imaginary plane including the inclined surface of the specific coil element.

摘要翻译： 磁头包括线圈，主极，写屏蔽，间隙部分和返回路径部分。 主极具有包括倾斜部分和平坦部分的顶表面。 线圈包括特定的线圈元件。 特定线圈元件具有前端部和与前端部邻接的倾斜面。 写屏蔽包括位于记录介质相对于主极的行进方向的前侧的顶部屏蔽层，并且位于比特定线圈元件更靠近介质面的表面。 顶部屏蔽层位于记录介质相对于包括特定线圈元件的倾斜表面的假想平面的行进方向的后侧。

公开(公告)号：US20150085629A1

公开(公告)日：2015-03-26

申请号：US14035015

申请日：2013-09-24

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Hironori ARAKI ,  Shigeki TANEMURA ,  Kazuki SATO ,  Ryuji FUJII

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Hironori ARAKI ,  Shigeki TANEMURA ,  Kazuki SATO ,  Ryuji FUJII

IPC分类号： G11B5/48 ,  G11B5/127

CPC分类号： G11B5/314 ,  G02B6/1226 ,  G11B5/3116 ,  G11B5/3163 ,  G11B2005/0021 ,  Y10T29/49032

摘要： A thermally assisted magnetic head includes a main magnetic pole layer, a near-field light generating layer having a generating end part generating near-field light arranged within a medium-opposing surface, and an optical waveguide guiding light to the near-field light generating layer. The near-field light generating layer has a laminated structure in which a first thin-film metal layer formed in a thin film form along a direction intersecting the medium-opposing surface and a second thin-film metal layer formed in a thin film form and formed using a second metal larger in hardness than a first metal forming the first thin-film metal layer are alternately laminated. Further, in the second thin-film metal layer, a defect part is formed, the defect part is a part smaller in thickness than another part or is a hole part, and a flat layer part other than the defect part surrounds the defect part.

摘要翻译： 一种热辅助磁头包括主磁极层，具有产生在介质相对表面内布置的近场光的产生端部分的近场光产生层和将光引导到近场光产生 层。 近场光产生层具有层叠结构，其中沿着与介质相对表面相交的方向形成薄膜的第一薄膜金属层和形成为薄膜形式的第二薄膜金属层，以及 使用比形成第一薄膜金属层的第一金属硬度大的第二金属交替层压。 此外，在第二薄膜金属层中，形成缺陷部，缺陷部的厚度比另一部分小，也可以是孔部，缺陷部以外的平坦部包围缺损部。

公开(公告)号：US20130329319A1

公开(公告)日：2013-12-12

申请号：US13493652

申请日：2012-06-11

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Seiichiro TOMITA ,  Hironori ARAKI ,  Tatsuya SHIMIZU

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Seiichiro TOMITA ,  Hironori ARAKI ,  Tatsuya SHIMIZU

IPC分类号： G11B5/17

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

摘要： A magnetic head includes first and second coils, a main pole, a write shield, a return path section, and a core part. The return path section includes a yoke part magnetically connected to the write shield, and a coupling part located away from a medium facing surface and magnetically coupling the yoke part and the main pole to each other. The first coil is located on the front side in the direction of travel of a recording medium relative to the main pole and wound around the coupling part. The core part is located farther from the medium facing surface than is the coupling part, and is magnetically connected to the main pole. The second coil is located on the front side in the direction of travel of the recording medium relative to the main pole and wound around the core part.

摘要翻译： 磁头包括第一和第二线圈，主极，写入屏蔽，返回路径部分和核心部分。 返回路径部包括磁性地连接到写入屏蔽的轭部，以及远离介质面的表面并且将轭部和主极彼此磁耦合的耦合部。 第一线圈位于记录介质相对于主极的行进方向的前侧，并缠绕在联接部上。 核心部分位于与介质相对表面比耦合部分更远的位置，并且与主极磁性连接。 第二线圈位于记录介质相对于主极的行进方向的前侧，并缠绕在芯部上。

公开(公告)号：US20120262825A1

公开(公告)日：2012-10-18

申请号：US13088852

申请日：2011-04-18

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Shigeki TANEMURA ,  Kazuki SATO ,  Atsushi IIJIMA

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Shigeki TANEMURA ,  Kazuki SATO ,  Atsushi IIJIMA

IPC分类号： G11B5/17 ,  G11B5/127 ,  G11B5/48

CPC分类号： G11B5/1278 ,  G11B5/3146 ,  G11B5/3163 ,  G11B5/3967 ,  Y10T29/49032

摘要： A thin-film magnetic head is constructed such that a main magnetic pole layer, a write shield layer, a gap layer, and a thin-film coil are laminated on a substrate. The write shield layer has an opposing shield part opposing the main magnetic pole layer and a front shield part. The front shield part is connected to the opposing shield part without straddling the thin-film coil. Besides, the front shield part has a shield front end face disposed in the medium-opposing surface and a shield upper end face formed distanced from the medium-opposing surface. Further, the front shield part has a shield connecting part. The shield front end face is connected to the shield upper end face by the shield connecting part.

摘要翻译： 薄膜磁头被构造为使得主磁极层，写入屏蔽层，间隙层和薄膜线圈层叠在基板上。 写屏蔽层具有与主磁极层相对的相对的屏蔽部分和前屏蔽部分。 前屏蔽部分连接到相对的屏蔽部分而不跨越薄膜线圈。 此外，前屏蔽部分具有设置在介质相对表面中的屏蔽前端面和远离介质相对表面形成的屏蔽上端面。 此外，前屏蔽部具有屏蔽连接部。 屏蔽前端面通过屏蔽连接部与屏蔽上端面连接。

公开(公告)号：US20120218663A1

公开(公告)日：2012-08-30

申请号：US13035234

申请日：2011-02-25

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Atsushi IIJIMA

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Atsushi IIJIMA

IPC分类号： G11B5/10

CPC分类号： G11B5/1278 ,  G11B5/314 ,  G11B5/315 ,  G11B5/40 ,  G11B5/607 ,  G11B5/6076

摘要： A magnetic head includes a main pole, a write shield, a return path section, a heater that generates heat for making part of a medium facing surface protrude, and a sensor that detects contact of the part of the medium facing surface with a recording medium. The return path section includes: a yoke layer located backward of the main pole along the direction of travel of the recording medium; a first coupling part coupling the yoke layer and the write shield to each other; and a second coupling part located away from the medium facing surface and coupling the yoke layer and the main pole to each other. The first coupling part has an end face facing toward the yoke layer. This end face includes a middle portion spaced from the yoke layer and facing the yoke layer, and two side portions located on opposite sides of the middle portion in a track width direction and in contact with the yoke layer. The sensor is located between the middle portion and the yoke layer.

摘要翻译： 磁头包括主极，写屏蔽，返回路径部分，产生用于使介质面向表面的一部分突出的热量的加热器，以及传感器，其检测介质面向表面的一部分与记录介质的接触 。 返回路径部分包括：沿着记录介质的行进方向位于主极后方的轭层; 耦合所述轭层和所述写屏蔽的第一耦合部分; 以及第二联接部件，其远离所述介质面对表面并且将所述轭层和所述主极彼此耦合。 第一联接部分具有面向轭层的端面。 该端面包括与磁轭层间隔开并面对磁轭层的中间部分，以及位于轨道宽度方向上与中间部分相对侧并与磁轭层接触的两个侧部。 传感器位于中间部分和轭层之间。