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公开(公告)号：US09721592B1
公开(公告)日：2017-08-01
申请号：US15165278
申请日：2016-05-26
Applicant: TDK CORPORATION
Inventor： Kei Hirata , Shingo Miyata
CPC classification number: G11B5/3116 , G11B5/112 , G11B5/1278 , G11B5/23 , G11B5/315 , G11B5/3163 , G11B5/3169 , G11B5/4826 , G11B5/4833
Abstract: This perpendicular magnetic recording head includes: a magnetic pole; a pair of side shields disposed to face each other with the magnetic pole interposed therebetween in a cross track direction; a pair of side gaps each provided between the magnetic pole and the pair of side shields; a trailing gap provided to cover the magnetic pole and the pair of side gaps, and having a first width in the cross track direction; and a first magnetic layer covering the trailing gap and having a second width larger than the first width in the cross track direction.
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公开(公告)号：US08867168B2
公开(公告)日：2014-10-21
申请号：US13708507
申请日：2012-12-07
Applicant: TDK Corporation
Inventor： Norikazu Ota , Masahiro Saito , Taro Oike , Takeo Kagami , Yosuke Antoku , Kenkichi Anagawa , Kenta Hara , Tetsuro Sasaki , Shingo Miyata , Katsuki Kurihara
CPC classification number: G11B5/1278 , G11B5/3116 , G11B5/315
Abstract: A magnetic head includes a main pole, a write shield, and a return path section. The write shield includes first and second shield portions located on opposite sides of the main pole in the track width direction. The return path section includes first and second yoke portions located on opposite sides of the main pole in the track width direction. The first yoke portion is connected to the first shield portion. The second yoke portion is connected to the second shield portion. A coil surrounds at least part of the entire outer periphery of the main pole when viewed from a medium facing surface.
Abstract translation: 磁头包括主极，写屏蔽和返回路径部分。 写屏蔽包括位于主磁极在磁道宽度方向的相对侧上的第一和第二屏蔽部分。 返回路径部分包括在轨道宽度方向上位于主极的相对侧上的第一和第二轭部分。 第一磁轭部分连接到第一屏蔽部分。 第二磁轭部分连接到第二屏蔽部分。 当从面向介质的表面观察时，线圈围绕主极的整个外周的至少一部分。
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