公开(公告)号：US08619389B1

公开(公告)日：2013-12-31

申请号：US13777387

申请日：2013-02-26

Applicant: TDK Corporation

Inventor： Masahiro Saito ,  Norikazu Ota ,  Masaya Kato ,  Atsushi Matsuo

IPC: G11B5/17 ,  G11B5/187

CPC classification number: G11B5/17 ,  G11B5/1278 ,  G11B5/187 ,  G11B5/3123 ,  G11B5/315

Abstract: A write shield includes first and second shield portions located on opposite sides of a main pole in a track width direction. A return path section includes first and second yoke portions located on opposite sides of the main pole in the track width direction. A coil surrounds at least part of the entire outer periphery of the main pole when viewed from a medium facing surface. The coil includes a first magnetic portion located in a first space between the main pole and the first yoke portion, and a second magnetic portion located in a second space between the main pole and the second yoke portion. The first and second magnetic portions are made of a magnetic conductive material.

Abstract translation: 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。 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。 线圈包括位于主极和第一磁轭部之间的第一空间中的第一磁性部分和位于主极和第二磁轭部分之间的第二空间中的第二磁性部分。 第一和第二磁性部分由导电材料制成。

公开(公告)号：US09153253B2

公开(公告)日：2015-10-06

申请号：US14150259

申请日：2014-01-08

Applicant: TDK CORPORATION

Inventor： Atsushi Yamaguchi ,  Atsushi Matsuo ,  Yuji Matsuura ,  Michitaka Nishiyama ,  Yumiko Yokoyama

IPC: G11B5/11 ,  G11B5/147 ,  G11B5/127 ,  G11B5/60 ,  G11B5/31

CPC classification number: G11B5/1278 ,  G11B5/11 ,  G11B5/315 ,  G11B5/6082

Abstract: The perpendicular magnetic recording head includes: a magnetic pole including an end surface exposed on an air bearing surface, and extending in a height direction perpendicular to the air bearing surface; a leading shield including an end surface exposed on the air bearing surface; a leading gap provided between the magnetic pole and the leading shield; and a recess shield including a mid-part and other parts, and provided at a position on a side opposite to the magnetic pole with the leading shield in between, the mid-part being distanced from the leading shield in a track width direction, the other parts being in contact with the leading shield, and the position being recessed from the air bearing surface.

Abstract translation: 垂直磁记录头包括：磁极，其包括暴露在空气轴承表面上的端面，并且在垂直于空气轴承表面的高度方向上延伸; 包括暴露在空气轴承表面上的端面的前导屏蔽; 在磁极和前导屏蔽之间提供前导间隙; 以及包括中间部分和其他部分的凹槽屏蔽，并且设置在与磁极相对的一侧的位置处与前屏蔽件之间，中间部分在磁道宽度方向上与前屏蔽件间隔开， 其他部分与前导罩接触，并且该位置从空气轴承表面凹陷。

公开(公告)号：US08817418B1

公开(公告)日：2014-08-26

申请号：US13967811

申请日：2013-08-15

Applicant: TDK Corporation

Inventor： Atsushi Matsuo ,  Masahiro Saito ,  Kei Hirata

IPC: G11B5/147

CPC classification number: G11B5/315 ,  G11B5/1278

Abstract: A magnetic head includes first and second coils, a main pole, a write shield, a return path section, and a core part. The write shield includes first and second shield portions located on opposite sides of the main pole in a 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 core part is magnetically connected to a part of the main pole located away from a medium facing surface. The first coil surrounds at least part of the entire outer periphery of the main pole. The second coil surrounds at least part of the core part.

Abstract translation: 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。 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。 芯部分磁性地连接到远离介质面的表面的主极的一部分。 第一线圈围绕主极的整个外周的至少一部分。 第二线圈包围芯部分的至少一部分。