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1. 发明授权

US08233237B2 Perpendicular magnetic write head and magnetic recording device 有权
标题翻译：垂直磁头和磁记录装置
公开(公告)号：US08233237B2
公开(公告)日：2012-07-31
申请号：US12819552
申请日：2010-06-21
申请人： Kenkichi Anagawa , Katsuki Kurihara , Takeo Kagami , Kei Hirata , Minoru Ota
发明人： Kenkichi Anagawa , Katsuki Kurihara , Takeo Kagami , Kei Hirata , Minoru Ota
IPC分类号： G11B5/31
CPC分类号： G11B5/3146 , G11B5/1278 , G11B5/235 , G11B5/315
摘要： A main magnetic-pole layer is provided with, at the tip end portion thereof, a trailing shied on the trailing side via a non-magnetic gap layer, and the non-magnetic gap layer includes therein one or more magnetic layers. This magnetic layer appropriately controls the amount of magnetic fluxes coming from the tip end portion of the main magnetic-pole layer for capturing into the trailing shield because the magnetic fluxes coming from the tip end portion of the main magnetic-pole layer go through the magnetic layer before being captured into the trailing shield.
摘要翻译：主磁极层在其末端部分经由非磁隙层在后侧设置有尾部，非磁性间隙层包括一个或多个磁性层。该磁性层适当地控制来自主磁极层的前端部分的磁通量，用于捕获到后屏蔽件中，因为来自主磁极层的末端部分的磁通量通过磁在被捕获到后盾之前。

2. 发明申请

US20110157746A1 Perpendicular magnetic recording head and magnetic recording device 有权
标题翻译：垂直磁记录头和磁记录装置
公开(公告)号：US20110157746A1
公开(公告)日：2011-06-30
申请号：US12654708
申请日：2009-12-30
申请人： Kei Hirata , Katsuki Kurihara , Kenkichi Anagawa , Takeo Kagami
发明人： Kei Hirata , Katsuki Kurihara , Kenkichi Anagawa , Takeo Kagami
IPC分类号： G11B5/23
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315
摘要： A perpendicular magnetic write head includes: a magnetic pole; a pair of side shields on both sides, in a write-track width direction, of the magnetic pole with respective side gaps in between; a trailing shield on a trailing side of the magnetic pole and the pair of side shields with a trailing gap in between. Each of the magnetic pole, the side shield, the trailing shield, the side gap, and the trailing gap has an end face exposed on an air bearing surface. The trailing gap has a first regional part and a second regional part. The first regional part separates a trailing edge of the magnetic pole from the trailing shield, and the second regional part separates the pair of side shields from the trailing shield. All or a part of the second regional part has a thickness larger than a thickness of the first regional part.
摘要翻译：垂直磁性写头包括：磁极; 在磁道的两侧的一对侧面屏蔽件，其两侧面间隙相差; 在磁极的后侧上的后挡板和在其间具有拖尾间隙的一对侧挡板。磁极，侧屏蔽，后屏蔽，侧面间隙和尾部间隙中的每一个具有暴露在空气轴承表面上的端面。尾随间隙具有第一区域部分和第二区域部分。第一区域部分将磁极的后缘与后屏蔽分开，并且第二区域部分将一对侧屏蔽与后屏蔽分开。第二区域部分的全部或一部分的厚度大于第一区域部分的厚度。

3. 发明授权

US08300359B2 Perpendicular magnetic recording head and magnetic recording device 有权
标题翻译：垂直磁记录头和磁记录装置
公开(公告)号：US08300359B2
公开(公告)日：2012-10-30
申请号：US12654708
申请日：2009-12-30
申请人： Kei Hirata , Katsuki Kurihara , Kenkichi Anagawa , Takeo Kagami
发明人： Kei Hirata , Katsuki Kurihara , Kenkichi Anagawa , Takeo Kagami
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315
摘要： A perpendicular magnetic write head includes: a magnetic pole; a pair of side shields on both sides, in a write-track width direction, of the magnetic pole with respective side gaps in between; a trailing shield on a trailing side of the magnetic pole and the pair of side shields with a trailing gap in between. Each of the magnetic pole, the side shield, the trailing shield, the side gap, and the trailing gap has an end face exposed on an air bearing surface. The trailing gap has a first regional part and a second regional part. The first regional part separates a trailing edge of the magnetic pole from the trailing shield, and the second regional part separates the pair of side shields from the trailing shield. All or a part of the second regional part has a thickness larger than a thickness of the first regional part.
摘要翻译：垂直磁性写头包括：磁极; 在磁道的两侧的一对侧面屏蔽件，其两侧面间隙相差; 在磁极的后侧上的后挡板和在其间具有拖尾间隙的一对侧挡板。磁极，侧屏蔽，后屏蔽，侧面间隙和尾部间隙中的每一个具有暴露在空气轴承表面上的端面。尾随间隙具有第一区域部分和第二区域部分。第一区域部分将磁极的后缘与后屏蔽分开，并且第二区域部分将一对侧屏蔽与后屏蔽分开。第二区域部分的全部或一部分的厚度大于第一区域部分的厚度。

4. 发明授权

US08472137B2 Magnetic head and method of manufacture thereof wherein the head includes a pole layer and non-magnetic layer having a continuous tapered face opposed to a trailing shield 有权
标题翻译：磁头及其制造方法，其中头部包括具有与后护罩相对的连续锥形面的极层和非磁性层
公开(公告)号：US08472137B2
公开(公告)日：2013-06-25
申请号：US12845349
申请日：2010-07-28
申请人： Kei Hirata , Kenkichi Anagawa , Michitaka Nishiyama , Hideyuki Yatsu , Shin Narushima , Hisayoshi Watanabe , Tatsuhiro Nojima
发明人： Kei Hirata , Kenkichi Anagawa , Michitaka Nishiyama , Hideyuki Yatsu , Shin Narushima , Hisayoshi Watanabe , Tatsuhiro Nojima
IPC分类号： G11B5/187 , G11B5/23
CPC分类号： G11B5/6082 , G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： The present invention relates to a magnetic head, a manufacturing method therefor, a head assembly, and a magnetic recording/reproducing apparatus. According to the present invention, it includes a magnetic pole layer, a non-magnetic layer, a trailing gap layer, and a trailing shield layer. The magnetic pole layer has a pole tip exposed on a magnetic medium-facing surface. The non-magnetic layer is laid on the magnetic pole layer. The trailing shield layer is exposed on the magnetic medium-facing surface and laid over the magnetic pole layer and the non-magnetic layer with the trailing gap layer between. The magnetic pole layer and the non-magnetic layer have a continuous tapered face opposed to a lower side of the trailing shield layer. Moreover, the tapered face extends from a trailing edge of the pole tip at a constant inclination angle.
摘要翻译：磁头及其制造方法技术领域本发明涉及一种磁头及其制造方法，磁头组件以及磁记录/重放装置。根据本发明，它包括磁极层，非磁性层，后隙层和后屏蔽层。磁极层具有暴露在面向磁介质的表面上的极尖。非磁性层铺设在磁极层上。后屏蔽层暴露在面向磁介质的表面上，并铺设在磁极层和非磁性层之间，后隙间隔在其间。磁极层和非磁性层具有与后屏蔽层的下侧相对的连续锥形面。此外，锥形面从极尖的后缘以恒定的倾斜角度延伸。

5. 发明申请

US20120140361A1 MAGNETIC HEAD, HEAD ASSEMBLY, AND MAGNETIC RECORDING/REPRODUCING APPARATUS TO REDUCE RISK OF WIDE AREA TRACK ERASE 有权
标题翻译：磁头，头组件和磁记录/再现设备，以减少风险的区域跟踪删除
公开(公告)号：US20120140361A1
公开(公告)日：2012-06-07
申请号：US12961939
申请日：2010-12-07
申请人： Minoru OTA , Kei Hirata , Kenkichi Anagawa
发明人： Minoru OTA , Kei Hirata , Kenkichi Anagawa
IPC分类号： G11B5/127 , G11B21/24
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , G11B19/045
摘要： A magnetic head includes a main magnetic pole layer and a yoke layer. The main magnetic pole layer generates a magnetic flux of a recording magnetic field and includes a magnetic pole front part and a magnetic pole rear part. The yoke layer is disposed at the magnetic pole rear part and includes a yoke front part and a yoke rear part. The magnetic pole front part extends on a magnetic medium-facing surface side of the magnetic pole rear part with a width in a track width direction being smaller than that of the magnetic pole rear part. The yoke front part extends on the magnetic medium-facing surface side of the yoke rear part with a width in the track width direction being larger than that of the magnetic pole rear part and that of the yoke rear part.
摘要翻译：磁头包括主磁极层和磁轭层。主磁极层产生记录磁场的磁通量，并包括磁极前部和磁极后部。磁轭层设置在磁极后部，并且包括磁轭前部和磁轭后部。磁极前部在磁极后部的面向磁性介质的表面侧延伸，磁道宽度方向的宽度小于磁极后部的宽度。磁轭前部在磁轭后部的面向磁介质的表面侧延伸，磁道宽度方向上的宽度大于磁极后部和磁轭后部的宽度。

6. 发明申请

US20120026629A1 MAGNETIC HEAD, MANUFACTURING METHOD THEREFOR, HEAD ASSEMBLY, AND MAGNETIC RECORDING/REPRODUCING APPARATUS 有权
标题翻译：磁头及其制造方法，头组件和磁记录/再现装置
公开(公告)号：US20120026629A1
公开(公告)日：2012-02-02
申请号：US12845349
申请日：2010-07-28
申请人： Kei HIRATA , Kenkichi Anagawa , Michitaka Nishiyama , Hideyuki Yatsu , Shin Narushima , Hisayoshi Watanabe , Tatsuhiro Nojima
发明人： Kei HIRATA , Kenkichi Anagawa , Michitaka Nishiyama , Hideyuki Yatsu , Shin Narushima , Hisayoshi Watanabe , Tatsuhiro Nojima
IPC分类号： G11B5/23 , G11B5/187 , G11B5/56
CPC分类号： G11B5/6082 , G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： The present invention relates to a magnetic head, a manufacturing method therefor, a head assembly, and a magnetic recording/reproducing apparatus. According to the present invention, it includes a magnetic pole layer, a non-magnetic layer, a trailing gap layer, and a trailing shield layer. The magnetic pole layer has a pole tip exposed on a magnetic medium-facing surface. The non-magnetic layer is laid on the magnetic pole layer. The trailing shield layer is exposed on the magnetic medium-facing surface and laid over the magnetic pole layer and the non-magnetic layer with the trailing gap layer between. The magnetic pole layer and the non-magnetic layer have a continuous tapered face opposed to a lower side of the trailing shield layer. Moreover, the tapered face extends from a trailing edge of the pole tip at a constant inclination angle.
摘要翻译：磁头及其制造方法技术领域本发明涉及一种磁头及其制造方法，磁头组件以及磁记录/重放装置。根据本发明，它包括磁极层，非磁性层，后隙层和后屏蔽层。磁极层具有暴露在面向磁介质的表面上的极尖。非磁性层铺设在磁极层上。后屏蔽层暴露在面向磁介质的表面上，并铺设在磁极层和非磁性层之间，后隙间隔在其间。磁极层和非磁性层具有与后屏蔽层的下侧相对的连续锥形面。此外，锥形面从极尖的后缘以恒定的倾斜角度延伸。

7. 发明授权

US08164853B2 Perpendicular magnetic write head with side shield saturation magnetic flux density increasing away from magnetic pole 有权
标题翻译：垂直磁写头，侧面屏蔽饱和磁通密度从磁极增加
公开(公告)号：US08164853B2
公开(公告)日：2012-04-24
申请号：US12719451
申请日：2010-03-08
申请人： Kei Hirata , Atsushi Yamaguchi , Masaya Kato , Hideyuki Ukita , Kenkichi Anagawa , Minoru Ota
发明人： Kei Hirata , Atsushi Yamaguchi , Masaya Kato , Hideyuki Ukita , Kenkichi Anagawa , Minoru Ota
IPC分类号： G11B5/10 , G11B5/31
CPC分类号： G11B5/315 , G11B5/1278
摘要： A perpendicular magnetic write head is provided with a magnetic pole and a pair of side shields disposed on both sides of the magnetic pole in a cross track direction with side gaps in between. Each of the pair of side shields is configured in such a manner that a saturation magnetic flux density thereof increases as a distance from the magnetic pole in the cross track direction increases. Such a configuration allows unwanted divergence component of magnetic flux in a recording magnetic field to be captured while avoiding any excessive capturing of the recording magnetic field, and while preventing any intensity reduction of the recording magnetic field in its entirety. As a result, the recording magnetic field is maintained to have an adequate intensity and spreading of the recording magnetic field is suppressed, so that the recording capabilities are improved.
摘要翻译：垂直磁性写头设置有磁极和一对侧屏蔽件，其设置在磁极的两侧上，并且在横向方向上具有侧间隙。一对侧面屏蔽中的每一个被构造成使得其饱和磁通密度随着在横向上的磁极的距离增加而增加。这样的配置允许在避免记录磁场的任何过度捕获的同时捕获记录磁场中的磁通量的不期望的发散分量，并且同时防止整个记录磁场的强度降低。结果，记录磁场被保持为具有足够的强度，并且抑制了记录磁场的扩展，从而提高了记录能力。

8. 发明申请

US20110216443A1 PERPENDICULAR MAGNETIC WRITE HEAD AND MAGNETIC RECORDING DEVICE 有权
标题翻译：全磁性写磁头和磁记录装置
公开(公告)号：US20110216443A1
公开(公告)日：2011-09-08
申请号：US12719451
申请日：2010-03-08
申请人： Kei Hirata , Atsushi Yamaguchi , Masaya Kato , Hideyuki Ukita , Kenkichi Anagawa , Minoru Ota
发明人： Kei Hirata , Atsushi Yamaguchi , Masaya Kato , Hideyuki Ukita , Kenkichi Anagawa , Minoru Ota
IPC分类号： G11B5/10
CPC分类号： G11B5/315 , G11B5/1278
摘要： A perpendicular magnetic write head is provided with a magnetic pole and a pair of side shields disposed on both sides of the magnetic pole in a cross track direction with side gaps in between. Each of the pair of side shields is configured in such a manner that a saturation magnetic flux density thereof increases as a distance from the magnetic pole in the cross track direction increases. Such a configuration allows unwanted divergence component of magnetic flux in a recording magnetic field to be captured while avoiding any excessive capturing of the recording magnetic field, and while preventing any intensity reduction of the recording magnetic field in its entirety. As a result, the recording magnetic field is maintained to have an adequate intensity and spreading of the recording magnetic field is suppressed, so that the recording capabilities are improved.
摘要翻译：垂直磁性写头设置有磁极和一对侧屏蔽件，其设置在磁极的两侧上，并且在横向方向上具有侧间隙。一对侧面屏蔽中的每一个被构造成使得其饱和磁通密度随着在横向上的磁极的距离增加而增加。这样的配置允许在避免记录磁场的任何过度捕获的同时捕获记录磁场中的磁通量的不期望的发散分量，并且同时防止整个记录磁场的强度降低。结果，记录磁场被保持为具有足够的强度，并且抑制了记录磁场的扩展，从而提高了记录能力。

9. 发明授权

US08665548B2 Magnetic recording device and magnetic recording method 有权
标题翻译：磁记录装置和磁记录方法
公开(公告)号：US08665548B2
公开(公告)日：2014-03-04
申请号：US13047304
申请日：2011-03-14
申请人： Kei Hirata , Hiroshi Kiyono , Osamu Nakada , Kenkichi Anagawa
发明人： Kei Hirata , Hiroshi Kiyono , Osamu Nakada , Kenkichi Anagawa
IPC分类号： G11B21/02
CPC分类号： G11B5/315 , G11B5/012 , G11B5/1278 , G11B5/3116
摘要： A magnetic disk device includes: a recording medium provided with a plurality of write tracks; a magnetic write head including a magnetic pole, side shields, and a leading shield, a distance from the magnetic pole to each of the side shields being maintained to be uniform with a gap layer therebetween, and a distance from the magnetic pole to the leading shield being maintained to be uniform with a gap layer therebetween; and a control section rotating the recording medium, and allowing magnetic information to be recorded on the recording medium while allowing the magnetic write head to travel in a direction from an inner write track toward an outer write track or in a direction from the outer write track toward the inner write track, across write tracks in the recording medium. With such a configuration, format efficiency may be improved, and a width of an erase band on a magnetic disk may be minimized. Therefore, surface recording density of a recording medium may be improved without reducing an effective write track width.
摘要翻译：磁盘装置包括：设置有多个写入磁道的记录介质; 包括磁极，侧屏蔽和前屏蔽的磁写头，从磁极到每个侧屏的距离保持均匀，其间具有间隙层，并且从磁极到前导的距离保持其间的间隙均匀的护罩; 以及控制部分，使记录介质旋转，并且允许磁信息被记录在记录介质上，同时允许磁性写入头沿着从内部写入磁道朝向外部写入磁道或从外部写入磁道的方向行进朝向内部写入轨道，跨越记录介质中的写入轨迹。利用这种配置，可以提高格式效率，并且可以使磁盘上的擦除带的宽度最小化。因此，可以提高记录介质的表面记录密度，而不会降低有效的写入磁道宽度。

10. 发明授权

US08208220B1 Magnetic head, head assembly, and magnetic recording/reproducing apparatus to reduce risk of wide area track erase 有权
标题翻译：磁头，头部组件和磁记录/再现装置，以减少广域磁道擦除的风险
公开(公告)号：US08208220B1
公开(公告)日：2012-06-26
申请号：US12961939
申请日：2010-12-07
申请人： Minoru Ota , Kei Hirata , Kenkichi Anagawa
发明人： Minoru Ota , Kei Hirata , Kenkichi Anagawa
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , G11B19/045
摘要： A magnetic head includes a main magnetic pole layer and a yoke layer. The main magnetic pole layer generates a magnetic flux of a recording magnetic field and includes a magnetic pole front part and a magnetic pole rear part. The yoke layer is disposed at the magnetic pole rear part and includes a yoke front part and a yoke rear part. The magnetic pole front part extends on a magnetic medium-facing surface side of the magnetic pole rear part with a width in a track width direction being smaller than that of the magnetic pole rear part. The yoke front part extends on the magnetic medium-facing surface side of the yoke rear part with a width in the track width direction being larger than that of the magnetic pole rear part and that of the yoke rear part.
摘要翻译：磁头包括主磁极层和磁轭层。主磁极层产生记录磁场的磁通量，并包括磁极前部和磁极后部。磁轭层设置在磁极后部，并且包括磁轭前部和磁轭后部。磁极前部在磁极后部的面向磁性介质的表面侧延伸，磁道宽度方向的宽度小于磁极后部的宽度。磁轭前部在磁轭后部的面向磁介质的表面侧延伸，磁道宽度方向上的宽度大于磁极后部和磁轭后部的宽度。

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