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1. 发明授权

US08588037B2 Magnetic disk device, magnetic disk evaluation apparatus, and magnetic head 有权
标题翻译：磁盘装置，磁盘评估装置和磁头
公开(公告)号：US08588037B2
公开(公告)日：2013-11-19
申请号：US13419394
申请日：2012-03-13
申请人： Yuuichi Yamada , Tomoko Taguchi , Yoshinobu Fuchizaki
发明人： Yuuichi Yamada , Tomoko Taguchi , Yoshinobu Fuchizaki
IPC分类号： G11B11/00
CPC分类号： G11B20/10009 , G11B5/3133 , G11B5/6088 , G11B20/10305 , G11B20/10509 , G11B27/36 , G11B2005/0021 , G11B2220/2508
摘要： A magnetic disk device of an embodiment includes a magnetic disk, a magnetic head, a laser-beam-intensity control unit, a reproduced-signal detecting unit, and a magnetic-disk evaluating unit. The magnetic head reads a signal recorded in the magnetic disk, or performs magnetic recording while irradiating a laser beam onto the magnetic disk. The laser-beam-intensity control unit controls the intensity of the laser beam. The reproduced-signal detecting unit detects the signal read by the magnetic head. The magnetic-disk evaluating unit evaluates the signal read from the magnetic head, on the basis of a relation between a noise level detected from the signal read by the magnetic head, and the intensity of the laser beam.
摘要翻译：一个实施例的磁盘装置包括磁盘，磁头，激光束强度控制单元，再现信号检测单元和磁盘评估单元。磁头读取记录在磁盘中的信号，或者在将激光束照射到磁盘上时进行磁记录。激光束强度控制单元控制激光束的强度。再现信号检测单元检测由磁头读取的信号。磁盘评估单元基于从由磁头读取的信号检测到的噪声电平与激光束的强度之间的关系来评估从磁头读取的信号。

2. 发明申请

US20130176835A1 MAGNETIC DISK DEVICE, MAGNETIC DISK EVALUATION APPARATUS, AND MAGNETIC HEAD 有权
标题翻译：磁盘设备，磁盘评估装置和磁头
公开(公告)号：US20130176835A1
公开(公告)日：2013-07-11
申请号：US13419394
申请日：2012-03-13
申请人： Yuuichi Yamada , Tomoko Taguchi , Yoshinobu Fuchizaki
发明人： Yuuichi Yamada , Tomoko Taguchi , Yoshinobu Fuchizaki
IPC分类号： G11B27/36 , G11B13/04
CPC分类号： G11B20/10009 , G11B5/3133 , G11B5/6088 , G11B20/10305 , G11B20/10509 , G11B27/36 , G11B2005/0021 , G11B2220/2508
摘要： A magnetic disk device of an embodiment includes a magnetic disk, a magnetic head, a laser-beam-intensity control unit, a reproduced-signal detecting unit, and a magnetic-disk evaluating unit. The magnetic head reads a signal recorded in the magnetic disk, or performs magnetic recording while irradiating a laser beam onto the magnetic disk. The laser-beam-intensity control unit controls the intensity of the laser beam. The reproduced-signal detecting unit detects the signal read by the magnetic head. The magnetic-disk evaluating unit evaluates the signal read from the magnetic head, on the basis of a relation between a noise level detected from the signal read by the magnetic head, and the intensity of the laser beam.
摘要翻译：一个实施例的磁盘装置包括磁盘，磁头，激光束强度控制单元，再现信号检测单元和磁盘评估单元。磁头读取记录在磁盘中的信号，或者在将激光束照射到磁盘上时进行磁记录。激光束强度控制单元控制激光束的强度。再现信号检测单元检测由磁头读取的信号。磁盘评估单元基于从由磁头读取的信号检测到的噪声电平与激光束的强度之间的关系来评估从磁头读取的信号。

3. 发明授权

US08149538B2 Magnetic head for perpendicular recording and disk drive with the same 有权
标题翻译：磁头用于垂直记录和磁盘驱动
公开(公告)号：US08149538B2
公开(公告)日：2012-04-03
申请号：US12836415
申请日：2010-07-14
申请人： Yoshinobu Fuchizaki , Tomoko Taguchi
发明人： Yoshinobu Fuchizaki , Tomoko Taguchi
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： According to one embodiment, a magnetic head for perpendicular recording includes a slider includes a facing surface, and a head section on the slider. The head section includes a main pole, a recording coil configured to excite the main pole, a write/shield pole opposed to a trailing side of the main pole across a write gap, and side shields disposed individually on opposite sides of the main pole transversely relative to a track to face side faces of the main pole and magnetically separated from the main pole. That part of a side face of each of the side shields opposed to each corresponding side face of the main pole which is located at the shortest distance from a leading end of each of the side faces of the main pole, on the facing surface, includes a permeability lower than that of the other part of the side shield.
摘要翻译：根据一个实施例，用于垂直记录的磁头包括滑块，其包括面对表面和滑块上的头部。头部包括主极，被配置为激励主极的记录线圈，跨越写入间隙的与主极的后侧相对的写/屏蔽极和分别设置在主极的相对侧上的侧屏蔽相对于与主极的侧面相对的轨迹，并与主极磁性分离。与主极的与主极的每个侧面的前端相对的最短距离处的与主极的每个对应的侧面相对的每个侧护板的侧面的一部分包括：透气性低于侧护罩其他部分的渗透率。

4. 发明申请

US20110075294A1 MAGNETIC HEAD AND DISK DRIVE WITH THE SAME 有权
标题翻译：磁头和磁盘驱动器
公开(公告)号：US20110075294A1
公开(公告)日：2011-03-31
申请号：US12836415
申请日：2010-07-14
申请人： Yoshinobu Fuchizaki , Tomoko Taguchi
发明人： Yoshinobu Fuchizaki , Tomoko Taguchi
IPC分类号： G11B5/10
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： According to one embodiment, a magnetic head for perpendicular recording includes a slider includes a facing surface, and a head section on the slider. The head section includes a main pole, a recording coil configured to excite the main pole, a write/shield pole opposed to a trailing side of the main pole across a write gap, and side shields disposed individually on opposite sides of the main pole transversely relative to a track to face side faces of the main pole and magnetically separated from the main pole. That part of a side face of each of the side shields opposed to each corresponding side face of the main pole which is located at the shortest distance from a leading end of each of the side faces of the main pole, on the facing surface, includes a permeability lower than that of the other part of the side shield.
摘要翻译：根据一个实施例，用于垂直记录的磁头包括滑块，其包括面对表面和滑块上的头部。头部包括主极，被配置为激励主极的记录线圈，跨越写入间隙的与主极的后侧相对的写/屏蔽极和分别设置在主极的相对侧上的侧屏蔽相对于与主极的侧面相对的轨迹，并与主极磁性分离。与主极的与主极的每个侧面的前端相对的最短距离处的与主极的每个对应的侧面相对的每个侧护板的侧面的一部分包括：透气性低于侧护罩其他部分的渗透率。

5. 发明授权

US08810961B2 Recording head with dual coil/dual shield arrangement and high frequency oscillator 有权
标题翻译：记录头采用双线圈/双屏蔽排列和高频振荡器
公开(公告)号：US08810961B2
公开(公告)日：2014-08-19
申请号：US13548922
申请日：2012-07-13
申请人： Tomoko Taguchi , Yusuke Tomoda
发明人： Tomoko Taguchi , Yusuke Tomoda
IPC分类号： G11B5/17 , G11B5/11 , G11B5/235 , G11B5/31
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3123 , G11B19/247 , G11B2005/0024
摘要： According to one embodiment, a recording head includes a main pole, a trailing shield including a first connecting portion and a second connecting portion, and configured to form together with the main pole a first magnetic core, a leading shield including a first connecting portion connected to the main pole through a magnetic material and an end portion opposing to the end portion of the main pole through a non-magnetic material, and configured to form together with the main pole a second magnetic core, and first and second coils wound around the first and second magnetic cores, and a connection terminal configured to flow a current through the main pole, non-magnetic conductive layer, and trailing shield.
摘要翻译：根据一个实施例，记录头包括主极，后屏蔽，包括第一连接部分和第二连接部分，并且被配置为与主极一起形成第一磁芯，所述前屏蔽包括第一连接部分连接通过非磁性材料通过磁性材料和与主极端部相对的端部连接到主极，并且被配置为与主极一起形成第二磁芯，以及缠绕在主极上的第一和第二线圈第一和第二磁芯，以及被配置为使电流流经主极，非磁性导电层和后屏蔽的连接端子。

6. 发明授权

US08773818B2 Magnetic recording head configured to reduce the degradation of recorded signals and disk device including the same 有权
标题翻译：磁记录头被配置为减少记录信号的劣化和包括其的盘装置
公开(公告)号：US08773818B2
公开(公告)日：2014-07-08
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
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，尾屏蔽，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。

7. 发明授权

US08705204B2 Recording head with high-frequency oscillator and bi-layer main pole height/width arrangement 有权
标题翻译：录音头采用高频振荡器和双层主极高/宽布置
公开(公告)号：US08705204B2
公开(公告)日：2014-04-22
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： G11B5/31
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，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。

8. 发明申请

US20120182646A1 PERPENDICULAR MAGNETIC RECORDING HEAD AND MAGNETIC DISK APPARATUS 有权
标题翻译：全磁性记录头和磁盘设备
公开(公告)号：US20120182646A1
公开(公告)日：2012-07-19
申请号：US13431004
申请日：2012-03-27
申请人： Tomoko Taguchi , Tomomi Funayama , Yuka Aoyagi , Katsuhiko Koui
发明人： Tomoko Taguchi , Tomomi Funayama , Yuka Aoyagi , Katsuhiko Koui
IPC分类号： G11B5/127 , G11B5/54 , G11B5/11
CPC分类号： G11B5/3143 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/315
摘要： According to one embodiment, a perpendicular magnetic recording head includes a main pole which generates a recording magnetic field, a return pole which forms a closed magnetic circuit for the recording magnetic field, and a side shield magnetically spaced from the main pole in a cross-track direction in which a point on a trailing edge of the side shield which is closest to the main pole is positioned on a leading side of a trailing edge of the main pole.
摘要翻译：根据一个实施例，垂直磁记录头包括产生记录磁场的主极，形成用于记录磁场的闭合磁路的返回极，以及在横截面中与主极磁隔离的侧屏蔽，轨道方向，其中最靠近主极的侧护板的后缘上的点位于主杆的后缘的前侧。

9. 发明申请

US20110242694A1 MAGNETIC HEAD AND DISK DRIVE WITH SAME 有权
标题翻译：磁头和磁盘驱动器
公开(公告)号：US20110242694A1
公开(公告)日：2011-10-06
申请号：US12984531
申请日：2011-01-04
申请人： Tomoko Taguchi
发明人： Tomoko Taguchi
IPC分类号： G11B5/17 , G11B5/09
CPC分类号： G11B5/3146 , G11B5/1278 , G11B5/3123 , G11B2005/0005
摘要： According to one embodiment, a magnetic head for perpendicular recording includes a first magnetic core includes a main pole configured to produce a recording magnetic field, and a return pole configured to reflux magnetic flux from the main pole to form a magnetic circuit in conjunction with the main pole, a first coil configured to excite magnetic flux in the magnetic circuit, side shields arranged individually on opposite sides of the main pole transversely relative to a track so as to be magnetically separated from the main pole and formed integrally with the return pole, a second magnetic core configured to form a physically closed magnetic path, a part of which comprises the return pole, and a second coil wound around the second magnetic core and configured to excite magnetic flux in the closed magnetic path.
摘要翻译：根据一个实施例，用于垂直记录的磁头包括：第一磁芯，包括被配置为产生记录磁场的主极;以及返回极，其被配置为从主极返回磁通量，以形成磁路，主极，被配置为激励磁路中的磁通量的第一线圈，相对于轨道横向地分别设置在主极的相对侧上的侧屏蔽，以与主极磁性分离并与返回极一体地形成，第二磁芯，被配置为形成物理闭合的磁路，其一部分包括所述返回极;以及第二线圈，缠绕在所述第二磁芯上并被配置为激发所述闭合磁路中的磁通量。

10. 发明申请

US20070279714A1 Color conversion device, color conversion method and color conversion program 有权
标题翻译：颜色转换装置，颜色转换方法和颜色转换程序
公开(公告)号：US20070279714A1
公开(公告)日：2007-12-06
申请号：US11645036
申请日：2006-12-26
申请人： Ryosuke Higashikata , Akihiro Ito , Yasunari Kishimoto , Tomoko Taguchi
发明人： Ryosuke Higashikata , Akihiro Ito , Yasunari Kishimoto , Tomoko Taguchi
IPC分类号： G03F3/08
CPC分类号： H04N1/6058
摘要： A color conversion device for color-converting an input image signal in an input color reproduction region of a source device, in a predetermined color space, by mapping the input image signal into an output color reproduction region of a destination device in the predetermined color space, comprising: a calculation portion for calculating a mapping destination in the output color reproduction region of a pre-specified characteristic point in the input color reproduction region; a correction portion for correcting the output color reproduction region such that a region including a saturation higher than the calculated mapping destination is eliminated; and a mapping portion for mapping the input image signal into the corrected output color reproduction region, is provided.
摘要翻译：一种颜色转换装置，用于通过将输入图像信号映射到预定色彩空间中的目的地装置的输出颜色再现区域中，在预定色彩空间中对源装置的输入彩色再现区域中的输入图像信号进行颜色转换包括：计算部分，用于计算输入颜色再现区域中预定特征点的输出颜色再现区域中的映射目的地; 校正部分，用于校正输出颜色再现区域，使得消除包括高于计算的映射目的地的饱和度的区域; 并且提供用于将输入图像信号映射到校正输出颜色再现区域的映射部分。

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