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1. 发明授权

US08295015B2 Magnetoresistive element, thin film magnetic head, magnetic head slider, head gimbal assembly, head arm assembly and magnetic disk device 有权
标题翻译：磁阻元件，薄膜磁头，磁头滑块，头万向节组件，头臂组件和磁盘设备
公开(公告)号：US08295015B2
公开(公告)日：2012-10-23
申请号：US12320878
申请日：2009-02-06
申请人： Naoki Ohta , Hiroshi Yamazaki , Kosuke Tanaka , Takayasu Kanaya , Kei Hirata
发明人： Naoki Ohta , Hiroshi Yamazaki , Kosuke Tanaka , Takayasu Kanaya , Kei Hirata
IPC分类号： G11B5/39
CPC分类号： G11B5/3932 , G01R33/098
摘要： The invention is devised to provide a magnetoresistive element that is hardly susceptible to harmful influence of unnecessary magnetic fields and noise of heat even when reduction in size is achieved to be adaptable to higher recording density, and therefore that is excellent in operational reliability. The magnetoresistive element includes a stacked structure including, in order: a magnetically pinned layer whose magnetization direction is fixed in a given direction; a non-magnetic layer; a magnetically free layer whose magnetization direction changes according to an external magnetic field; and an antiferromagnetic bias layer exchange-coupled with the magnetically free layer. The exchange-coupling magnetic field between the magnetically free layer and the antiferromagnetic bias layer is smaller than a saturation magnetic field of the magnetically free layer.
摘要翻译：本发明的目的在于提供一种磁阻元件，即使实现了适应于较高记录密度的尺寸减小，几乎不易受不必要的磁场的有害影响和热噪声的影响，因此具有优异的操作可靠性。磁阻元件包括层叠结构，其顺序包括：磁性固定层，其磁化方向在给定方向上固定; 非磁性层; 磁化方向根据外部磁场而变化的无磁性层; 和与磁性层交换耦合的反铁磁偏置层。磁性层和反铁磁偏置层之间的交换耦合磁场小于无磁层的饱和磁场。

2. 发明申请

US20080170339A1 MAGNETIC HEAD SLIDER USING GIANT MAGNETOSTRICTIVE MATERIAL 有权
标题翻译：使用巨磁电阻材料的磁头滑块
公开(公告)号：US20080170339A1
公开(公告)日：2008-07-17
申请号：US11622697
申请日：2007-01-12
申请人： Naoki Ohta , Kei Hirata
发明人： Naoki Ohta , Kei Hirata
IPC分类号： G11B5/33
CPC分类号： G11B5/3136 , B82Y10/00 , B82Y25/00 , G11B5/3173 , G11B5/6047 , G11B5/6082 , G11B2005/3996
摘要： A magnetic head slider includes at least one thin-film magnetic head formed on a trailing surface of the magnetic head slider, and an ABS to be faced a magnetic disk in operation. At least a part of the ABS is made of a giant magnetostrictive material.
摘要翻译：磁头滑动器包括形成在磁头滑块的后表面上的至少一个薄膜磁头和操作中面向磁盘的ABS。 ABS的至少一部分由巨磁致伸缩材料制成。

3. 发明申请

US20100202088A1 Magnetoresistive element, thin film magnetic head, magnetic head slider, head gimbal assembly, head arm assembly and magnetic disk device 有权
标题翻译：磁阻元件，薄膜磁头，磁头滑块，头万向节组件，头臂组件和磁盘设备
公开(公告)号：US20100202088A1
公开(公告)日：2010-08-12
申请号：US12320878
申请日：2009-02-06
申请人： Naoki Ohta , Hiroshi Yamazaki , Kosuke Tanaka , Takayasu Kanaya , Kei Hirata
发明人： Naoki Ohta , Hiroshi Yamazaki , Kosuke Tanaka , Takayasu Kanaya , Kei Hirata
IPC分类号： G11B5/33
CPC分类号： G11B5/3932 , G01R33/098
摘要： The invention is devised to provide a magnetoresistive element that is hardly susceptible to harmful influence of unnecessary magnetic fields and noise of heat even when reduction in size is achieved to be adaptable to higher recording density, and therefore that is excellent in operational reliability. The magnetoresistive element includes a stacked structure including, in order: a magnetically pinned layer whose magnetization direction is fixed in a given direction; a non-magnetic layer; a magnetically free layer whose magnetization direction changes according to an external magnetic field; and an antiferromagnetic bias layer exchange-coupled with the magnetically free layer. The exchange-coupling magnetic field between the magnetically free layer and the antiferromagnetic bias layer is smaller than a saturation magnetic field of the magnetically free layer.
摘要翻译：本发明的目的在于提供一种磁阻元件，即使实现了适应于较高记录密度的尺寸减小，几乎不易受不必要的磁场的有害影响和热噪声的影响，因此具有优异的操作可靠性。磁阻元件包括层叠结构，其顺序包括：磁性固定层，其磁化方向在给定方向上固定; 非磁性层; 磁化方向根据外部磁场而变化的无磁性层; 和与磁性层交换耦合的反铁磁偏置层。磁性层和反铁磁偏置层之间的交换耦合磁场小于无磁层的饱和磁场。

4. 发明授权

US07948713B2 Magnetic head slider using giant magnetostrictive material 有权
标题翻译：磁头滑块使用巨磁致伸缩材料
公开(公告)号：US07948713B2
公开(公告)日：2011-05-24
申请号：US11622697
申请日：2007-01-12
申请人： Naoki Ohta , Kei Hirata
发明人： Naoki Ohta , Kei Hirata
IPC分类号： G11B5/60 , G11B21/24
CPC分类号： G11B5/3136 , B82Y10/00 , B82Y25/00 , G11B5/3173 , G11B5/6047 , G11B5/6082 , G11B2005/3996
摘要： A magnetic head slider includes at least one thin-film magnetic head formed on a trailing surface of the magnetic head slider, and an ABS to be faced a magnetic disk in operation. At least a part of the ABS is made of a giant magnetostrictive material.
摘要翻译：磁头滑动器包括形成在磁头滑块的后表面上的至少一个薄膜磁头和操作中面向磁盘的ABS。 ABS的至少一部分由巨磁致伸缩材料制成。

5. 发明授权

US08482895B2 Electronic circuit board, magnetic sensor, and method for protecting power supply of electronic circuit 有权
标题翻译：电子电路板，磁传感器和电子电路电源保护方法
公开(公告)号：US08482895B2
公开(公告)日：2013-07-09
申请号：US13019601
申请日：2011-02-02
申请人： Naoki Ohta
发明人： Naoki Ohta
IPC分类号： H02H5/04
CPC分类号： G01R33/098 , G01R33/0023
摘要： An electronic circuit board includes a TMR element having two terminals connected to a power supply and a ground, respectively, at least through a lead. After a breakdown of a tunnel barrier film of the TMR element, at least a part of the lead breaks by an overcurrent due to a short circuit between the two terminals.
摘要翻译：电子电路板包括分别至少通过引线连接到电源和接地的两个端子的TMR元件。在TMR元件的隧道势垒膜击穿之后，由于两个端子之间的短路，导线的至少一部分由于过电流而断开。

6. 发明授权

US08090298B2 Electrostatic charging member, electrostatic charging device, process cartridge and image forming apparatus 有权
标题翻译：静电充电构件，静电充电装置，处理盒和成像装置
公开(公告)号：US08090298B2
公开(公告)日：2012-01-03
申请号：US12424970
申请日：2009-04-16
申请人： Takuro Hoshio , Noboru Wada , Makoto Takemoto , Nagahito Ichijo , Naoki Ohta , Kenji Inoue , Hiroyuki Miura , Keiko Ono , Taketoshi Hoshizaki , Minoru Rokutan
发明人： Takuro Hoshio , Noboru Wada , Makoto Takemoto , Nagahito Ichijo , Naoki Ohta , Kenji Inoue , Hiroyuki Miura , Keiko Ono , Taketoshi Hoshizaki , Minoru Rokutan
IPC分类号： G03G15/02
CPC分类号： G03G15/0233
摘要： An electrostatic charging member includes a base material; and an outermost layer that contains a porous filler and a resin and has a gel fraction of at least about 50% and a surface roughness Rz in a range of about 2 μm to about 20 μm.
摘要翻译：静电充电构件包括基材; 以及包含多孔填料和树脂并且具有至少约50％的凝胶分数和约2μm至约20μm范围的表面粗糙度Rz的最外层。

7. 发明授权

US07894166B2 CPP GMR device with ferromagnetic layer split in depth direction 有权
标题翻译：具有铁磁层的CPP GMR器件在深度方向上分裂
公开(公告)号：US07894166B2
公开(公告)日：2011-02-22
申请号：US11924246
申请日：2007-10-25
申请人： Hiroshi Yamazaki , Naoki Ohta
发明人： Hiroshi Yamazaki , Naoki Ohta
IPC分类号： G11B5/39
CPC分类号： G11B5/3932 , B82Y10/00 , B82Y25/00 , G11B2005/3996
摘要： A magneto-resistive effect device of a CPP structure includes a nonmagnetic intermediate layer, and a first ferromagnetic layer and a second ferromagnetic layer stacked together and formed with the nonmagnetic intermediate layer sandwiched between them. The first ferromagnetic layer and the second ferromagnetic layer are magnetically coupled via the nonmagnetic intermediate layer such that magnetizations of the first ferromagnetic layer and the second ferromagnetic layer are antiparallel with each other. Mutually antiparallel magnetizations of two magnetic layers lie in a medium opposite plane or front to rear direction and in a rear to front direction. The second ferromagnetic layer is divided by a nonmagnetic intervening layer into a front second ferromagnetic layer and a rear second ferromagnetic layer on the way from the front to the rear.
摘要翻译： CPP结构的磁阻效应器件包括非磁性中间层以及堆叠在一起形成有非磁性中间层的第一铁磁层和第二铁磁层。第一铁磁层和第二铁磁层经由非磁性中间层磁耦合，使得第一铁磁层和第二铁磁层的磁化彼此反平行。两个磁性层的相互反平行磁化位于相对的平面或前后方向的介质中，并且位于从前到后的方向上。第二铁磁层在从前到后的路上被非磁性中间层分成前第二铁磁层和后第二铁磁层。

8. 发明授权

US07801461B2 Charging member cleaning roller, charging member cleaning roller for charging device, process cartridge and image forming apparatus 有权
公开(公告)号：US07801461B2
公开(公告)日：2010-09-21
申请号：US11707082
申请日：2007-02-16
申请人： Takuro Hoshio , Fumio Ojima , Yoshihiro Maekawa , Taichi Yamada , Nagahito Ichijo , Naoki Ohta , Hiroyuki Fukuda , Yoshinori Kubo
发明人： Takuro Hoshio , Fumio Ojima , Yoshihiro Maekawa , Taichi Yamada , Nagahito Ichijo , Naoki Ohta , Hiroyuki Fukuda , Yoshinori Kubo
IPC分类号： G03G15/02
CPC分类号： G03G15/0225
摘要： There is provided a charging member cleaning roller including: a core body; and an elastic layer that is provided on a peripheral surface of the core body and includes a polyurethane foam obtained from at least a polyester polyol, a foam stabilizer, and a catalyst. Moreover, there is provided a charging member cleaning roller including: a core body; and an elastic layer that is provided on a peripheral surface of the core body and includes a urethane foam having an open-cell structure, a resilience of approximately 15% to 30%, and a hardness of approximately 150N to 230N.

9. 发明申请

US20090145878A1 Thin-film patterning method for magnetoresistive device 有权
标题翻译：用于磁阻器件的薄膜图案化方法
公开(公告)号：US20090145878A1
公开(公告)日：2009-06-11
申请号：US12000285
申请日：2007-12-11
申请人： Naoki Ohta , Kazuki Sato , Kosuke Tanaka
发明人： Naoki Ohta , Kazuki Sato , Kosuke Tanaka
IPC分类号： B44C1/22
CPC分类号： G03B31/00 , G11B5/3163 , G11B5/3903 , G11B5/3909
摘要： The thin-film patterning method for a magnetoresistive device comprises forming a functional layer on a substrate; forming a first mask layer above the functional layer; forming a patterned resist on the first mask layer; etching the first mask layer by using the resist; removing the resist; forming a second mask layer by atomic layer deposition, the second mask layer covering a step defined by an edge of the first mask layer; dry-etching the second mask layer in a thickness direction of the substrate so as to leave the second mask layer on a side face of the step; removing the first mask layer so as to expose the functional layer under the first mask; and dry-etching the functional layer by using the second mask layer.
摘要翻译：用于磁阻器件的薄膜构图方法包括在衬底上形成功能层; 在功能层上形成第一掩模层; 在所述第一掩模层上形成图案化抗蚀剂; 通过使用抗蚀剂来蚀刻第一掩模层; 去除抗蚀剂; 通过原子层沉积形成第二掩模层，所述第二掩模层覆盖由所述第一掩模层的边缘限定的台阶; 在所述基板的厚度方向上干蚀刻所述第二掩模层，以使所述第二掩模层在所述台阶的侧面上离开; 去除所述第一掩模层以使所述功能层暴露在所述第一掩模下方; 并通过使用第二掩模层对功能层进行干蚀刻。

10. 发明授权

US07436633B2 Thin-film magnetic head, head gimbal assembly and hard disk system 有权
标题翻译：薄膜磁头，磁头万向架组件和硬盘系统
公开(公告)号：US07436633B2
公开(公告)日：2008-10-14
申请号：US11205072
申请日：2005-08-17
申请人： Hiroshi Kiyono , Tetsuya Kuwashima , Takeo Kagami , Noriaki Kasahara , Naoki Ohta , Nozomu Hachisuka
发明人： Hiroshi Kiyono , Tetsuya Kuwashima , Takeo Kagami , Noriaki Kasahara , Naoki Ohta , Nozomu Hachisuka
IPC分类号： G11B5/245
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/1278 , G11B5/31 , G11B5/3912 , G11B5/3967 , G11B5/4826 , G11B2005/3996
摘要： A parasitic capacity C4 generated between a slider substrate and the first shield layer with the first insulating layer as a capacity layer is made substantially equal to a parasitic capacity C2 occurring between a lower magnetic layer and the second shield layer with the third insulating layer as a capacity layer. Preferably, a connection is made between the lower magnetic layer and the slider substrate by a resistance of preferably 100 (Ω) or lower. Thus, it is possible to provide a thin-film magnetic head that can hold back deterioration in a reproducing device and the occurrence of errors due to crosstalk between a recording device and the reproducing device and extraneous noises.
摘要翻译：在第一绝缘层作为电容层的滑块基板与第一屏蔽层之间产生的寄生电容C 4大体上等于具有第三绝缘层的下磁层与第二屏蔽层之间的寄生电容C 2 作为容量层。优选地，通过优选100（Ω）或更低的电阻在下磁性层和滑块基板之间形成连接。因此，可以提供能够抑制再现装置中的劣化的薄膜磁头和由于记录装置与再现装置之间的串扰而引起的错误的发生以及无关的噪声。

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