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41. 发明申请

US20080282532A1 Method of making thin film magnetic head using electric lapping guide 失效
公开(公告)号：US20080282532A1
公开(公告)日：2008-11-20
申请号：US11798427
申请日：2007-05-14
申请人： Naoki Ohta , Kazuki Sato
发明人： Naoki Ohta , Kazuki Sato
IPC分类号： G11B5/39 , H04R31/00
CPC分类号： G11B5/3173 , G11B5/3163 , G11B5/3169 , G11B5/3967 , Y10T29/49021 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T428/1121
摘要： As a reticle pattern corresponding to a resist pattern for magnetic detection element layer and a reticle pattern corresponding to a resist pattern for conductive layer in a reticle, a reticle having a convex portion that projects in the height direction and a concave portion that dents in the direction opposite to the convex portion, respectively, is used to form a convex portion and concave portion corresponding to the convex portion and concave portion of the reticle pattern in the resist pattern for magnetic detection element and in the resist pattern for conductive layer, respectively. Then, with each resist pattern as a mask, unnecessary portions of the magnetic detection element layer and conductive layer are removed to determine an initial height of the magnetic detection element layer and an initial height perpendicular to a medium facing surface of the conductive layer, and to form a convex portion and concave portion corresponding to the convex portion and concave portion of the resist pattern in the magnetic detection element layer and in the conductive layer, respectively. Then, based on a ratio between a width in the track width direction of the convex portion of the magnetic detection element layer and a width in the track width direction of the concave portion of the magnetic detection element layer, a deviation in the height direction concerning a surface intersecting the height direction of the magnetic detection element layer is obtained, and based on a ratio between a width in the track width direction of the convex portion of the conductive layer and a width in the track width direction of the concave portion of the conductive layer, a deviation in the height direction concerning a surface intersecting the height direction of the conductive layer is obtained, and then based on the deviation in the height direction of the magnetic detection element layer and the deviation in the height direction of the conductive layer, the medium facing surface is ground with the conductive layer as a resistance sensor so that the height of the magnetic detection element layer be a desired value.

42. 发明申请

US20080158723A1 MAGNETIC DISK DRIVE APPARATUS WITH MAGNETIC HEAD SLIDERS 有权
标题翻译：磁性磁带驱动装置与磁头滑块
公开(公告)号：US20080158723A1
公开(公告)日：2008-07-03
申请号：US11617201
申请日：2006-12-28
申请人： Naoki OHTA , Kazuki Sato
发明人： Naoki OHTA , Kazuki Sato
IPC分类号： G11B5/012
CPC分类号： G11B5/54 , G11B5/40
摘要： A magnetic disk drive apparatus includes a magnetic disk, a ramp mechanism, a pair of magnetic head sliders each having an MR read head element, and a load/unload mechanism for retracting the pair of magnetic head sliders to the ramp mechanism under unloading states and for putting the pair of magnetic head sliders back to face front and back surfaces of the magnetic disk respectively under loading states. The ramp mechanism has head resting portions and a pair of permanent magnets. The pair of magnetic head sliders respectively resting in the head resting portions in a manner to face to each other during unloaded states. The pair of permanent magnets generates a closed loop magnetic field applied to the pair of magnetic head sliders rested in the respective head resting portions. The magnetic fields applied to the respective magnetic head sliders are in opposite directions along the track width of the magnetic head sliders.
摘要翻译：磁盘驱动装置包括磁盘，斜坡机构，每个具有MR读取头元件的一对磁头滑块，以及用于在卸载状态下将一对磁头滑块回缩到斜坡机构的装载/卸载机构，以及用于将一对磁头滑块分别放置在负载状态下面对磁盘的前表面和后表面。斜坡机构具有头部静止部分和一对永磁体。一对磁头滑块在卸载状态下以彼此面对的方式分别搁置在头部静止部分中。一对永磁体产生一个闭环磁场，该磁场施加到搁置在相应磁头固定部分中的一对磁头滑块。施加到相应的磁头滑块的磁场沿着磁头滑块的轨道宽度处于相反的方向。

43. 发明授权

US10803888B1 Magnetic head including spin torque oscillator and manufacturing method for the same 有权
公开(公告)号：US10803888B1
公开(公告)日：2020-10-13
申请号：US16574880
申请日：2019-09-18
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Yoji Nomura , Tetsuya Roppongi , Atsushi Yamaguchi
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Yoji Nomura , Tetsuya Roppongi , Atsushi Yamaguchi
IPC分类号： G11B5/115 , G11B5/39 , C23F4/04
摘要： A manufacturing method for a magnetic head includes the steps of: forming a main pole; forming a spin torque oscillator; and forming a trailing shield. The step of forming the spin torque oscillator includes: a step of forming a layered film; a step of forming an interposition layer; a step of forming a mask; a first etching step of etching a portion of the interposition layer using the mask; a second etching step of etching a portion of the layered film using the mask and the interposition layer as an etching mask; a step of removing the interposition layer and the mask; and a patterning step of patterning the layered film into the spin torque oscillator.

44. 发明授权

US09542960B2 Thermally-assisted magnetic recording head including a main pole, a plasmon generator and two side shields 有权
标题翻译：热辅助磁记录头包括主极，等离子体激元发生器和两个侧面屏蔽
公开(公告)号：US09542960B2
公开(公告)日：2017-01-10
申请号：US14720319
申请日：2015-05-22
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Kazuki Sato , Hideo Mamiya , Kenichi Takano
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Kazuki Sato , Hideo Mamiya , Kenichi Takano
IPC分类号： G11B11/00 , G11B5/31 , G11B5/48 , G11B5/00 , G11B11/105 , G11B5/60
CPC分类号： G11B5/315 , G11B5/314 , G11B5/3163 , G11B5/6088 , G11B11/10534 , G11B11/10536 , G11B11/10543 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes a main pole, a plasmon generator, and first and second side shields. The main pole has a front end face located in the medium facing surface. The plasmon generator has a near-field light generating surface located in the medium facing surface. The front end face of the main pole includes a first end face portion, and a second end face portion greater in width than the first end face portion. The first and second side shields have first and second side shield end faces located on opposite sides of at least part of the near-field light generating surface and at least part of the first end face portion in the track width direction.
摘要翻译：热辅助磁记录头包括主极，等离子体激元发生器以及第一和第二侧屏蔽。主杆具有位于介质面对表面中的前端面。等离子体发生器具有位于介质面对表面中的近场光产生表面。主极的前端面包括第一端面部分和宽度大于第一端面部分的第二端面部分。第一和第二侧面屏蔽具有位于近场光产生表面的至少一部分的相对侧上的第一和第二侧屏蔽端面以及轨道宽度方向上的第一端面部分的至少一部分。

45. 发明授权

US09495980B1 Magnetic head for perpendicular magnetic recording with a coil including two coil portions 有权
标题翻译：用于具有包括两个线圈部分的线圈的垂直磁记录磁头
公开(公告)号：US09495980B1
公开(公告)日：2016-11-15
申请号：US14886900
申请日：2015-10-19
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Hironori Araki , Kazumasa Yasuda , Kenichi Takano
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Hironori Araki , Kazumasa Yasuda , Kenichi Takano
IPC分类号： G11B5/127 , G11B5/39
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3123
摘要： A magnetic head includes a coil, a main pole and a return path section. The return path section includes a yoke section, and a coupling section coupling the yoke section to the main pole. The coil includes a first coil portion surrounding at least part of an outer peripheral surface of the coupling section, and a second coil portion surrounding at least part of the entire perimeter of the main pole as viewed from the medium facing surface. The winding of the coil includes a common portion used in common to form part of the first coil portion and part of the second coil portion.
摘要翻译：磁头包括线圈，主极和返回路径部分。返回通路部分包括轭部，以及将轭部连接到主极的耦合部。线圈包括围绕耦合部分的外周表面的至少一部分的第一线圈部分和围绕从介质面向表面观察的主极的整个周边的至少一部分的第二线圈部分。线圈的绕组包括共同使用的共同部分，以形成第一线圈部分的一部分和第二线圈部分的一部分。

46. 发明授权

US09030776B1 Magnetic head for perpendicular magnetic recording including a main pole and a shield 有权
标题翻译：用于垂直磁记录的磁头，包括主极和屏蔽
公开(公告)号：US09030776B1
公开(公告)日：2015-05-12
申请号：US14107714
申请日：2013-12-16
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Yukinori Ikegawa , Hironori Araki , Tatsuya Shimizu
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Yukinori Ikegawa , Hironori Araki , Tatsuya Shimizu
IPC分类号： G11B5/39 , G11B5/11 , G11B5/17
CPC分类号： G11B5/11 , G11B5/17 , G11B5/3116 , G11B5/3123 , G11B5/3143 , G11B5/315
摘要： A magnetic head includes a main pole, a write shield, and first and second nonmagnetic layers. The main pole has a top surface including an inclined surface portion. The inclined surface portion includes a first portion and a second portion, the first portion being closer to a medium facing surface. The write shield includes an inclined portion facing toward the top surface of the main pole. The first nonmagnetic layer is interposed between the inclined portion and the second portion of the inclined surface portion. The second nonmagnetic layer is interposed between the inclined portion and a combination of the first portion of the inclined surface portion and the first nonmagnetic layer.
摘要翻译：磁头包括主极，写屏蔽以及第一和第二非磁性层。主极具有包括倾斜表面部分的顶表面。倾斜表面部分包括第一部分和第二部分，第一部分更靠近介质面向表面。写入屏蔽包括面向主极的顶表面的倾斜部分。第一非磁性层插入倾斜部分和倾斜表面部分的第二部分之间。第二非磁性层介于倾斜部分和倾斜表面部分的第一部分与第一非磁性层的组合之间。

47. 发明授权

US08837083B1 Magnetic head for perpendicular magnetic recording including a heater 有权
标题翻译：用于垂直磁记录的磁头，包括一个加热器
公开(公告)号：US08837083B1
公开(公告)日：2014-09-16
申请号：US13974732
申请日：2013-08-23
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： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3133 , G11B5/315 , G11B5/607
摘要： A magnetic head includes a main pole, a return path section, a heater for heating the main pole, and a metal portion. The metal portion is isolated from the return path section and disposed such that the heater is interposed between the main pole and the metal portion. The return path section has a contact surface in contact with the main pole. The metal portion is located farther from the medium facing surface than is the contact surface. The main pole and the metal portion define therebetween a receiving space for receiving at least part of the heater. The at least part of the heater is received in the receiving space.
摘要翻译：磁头包括主极，返回路径部分，用于加热主极的加热器和金属部分。金属部分与返回路径部隔离，并且设置成使得加热器介于主极和金属部分之间。返回路径部分具有与主极接触的接触表面。金属部分比接触表面远离介质面向表面。主极和金属部分在其间限定有用于接收加热器的至少一部分的容纳空间。加热器的至少一部分被接收在接收空间中。

48. 发明授权

US08824102B2 Thin-film magnetic head with improved wide area track erasure (WATE), method of manufacturing the same, head gimbal assembly, and hard disk drive 有权
标题翻译：具有改善的广域轨道擦除（WATE）的薄膜磁头，其制造方法，头万向架组件和硬盘驱动器
公开(公告)号：US08824102B2
公开(公告)日：2014-09-02
申请号：US13099729
申请日：2011-05-03
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： G11B5/31 , G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , Y10T29/49032 , Y10T428/1186
摘要： A thin-film magnetic head includes a main magnetic pole layer, write shield layer, gap layer, and thin-film coils, which are laminated on a substrate. A return magnetic pole layer is spaced from the medium-opposing surface on the side opposite to the write shield layer with the main magnetic pole layer intervening therebetween. A connecting magnetic layer is formed using a magnetic material to connect the return magnetic pole layer to the write shield layer on the side closer to the medium-opposing surface than is the thin-film coil. The thin-film coil is wound as a flat spiral around the write shield layer. A part of the thin-film coil wound as the flat spiral is disposed only at a position distanced from the substrate than is the main magnetic pole layer.
摘要翻译：薄膜磁头包括层叠在基板上的主磁极层，写入屏蔽层，间隙层和薄膜线圈。返回磁极层与写入屏蔽层相对的一侧的介质相对表面间隔开，主磁极层介于它们之间。使用磁性材料形成连接磁性层，以使返回磁极层与薄膜线圈相比更靠近介质相对表面的一侧将写入屏蔽层连接。薄膜线圈围绕写入屏蔽层缠绕成平坦的螺旋线。作为扁平螺旋卷绕的薄膜线圈的一部分仅设置在与主磁极层相比离开基板的位置。

49. 发明授权

US08780497B2 Magnetic head for perpendicular magnetic recording having a return path section 有权
标题翻译：具有返回路径部分的垂直磁记录用磁头
公开(公告)号：US08780497B2
公开(公告)日：2014-07-15
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。

50. 发明授权

US08619518B1 Thermally-assisted magnetic recording head having expanded near-field light generating layer and method of manufacture 有权
标题翻译：具有扩展的近场光产生层的热辅助磁记录头及其制造方法
公开(公告)号：US08619518B1
公开(公告)日：2013-12-31
申请号：US13586351
申请日：2012-08-15
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： G11B11/00
CPC分类号： G11B5/6088 , G11B5/3116 , G11B5/314 , G11B5/3163 , G11B2005/0021
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 optical waveguide has a waveguide end face arranged within the medium-opposing surface and an upper end face on a side closer to the main magnetic pole layer. The thermally assisted magnetic head has an interposed layer which is in direct contact with an outer surface of the optical waveguide. The near-field light generating layer has a near-field light generating part having the generating end part and an expanded part connected with the near-field light generating part. The expanded part has a base part arranged above the upper end face of the optical waveguide and extended base part connected with the base 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。光波导具有布置在介质相对表面内的波导端面和更靠近主磁极层的一侧的上端面。热辅助磁头具有与光波导的外表面直接接触的中间层。近场光产生层具有具有发光端部的近场光产生部和与近场光产生部连接的扩展部。扩展部具有布置在光波导的上端面上方的基部和与基部连接的延伸基部。

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