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公开(公告)号：US20150194169A1
公开(公告)日：2015-07-09
申请号：US14150259
申请日：2014-01-08
Applicant: TDK CORPORATION
Inventor： Atsushi YAMAGUCHI , Atsushi MATSUO , Yuji MATSUURA , Michitaka NISHIYAMA , Yumiko YOKOYAMA
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。
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公开(公告)号：US20240331904A1
公开(公告)日：2024-10-03
申请号：US18616465
申请日：2024-03-26
Applicant: TDK CORPORATION
Inventor： Hitoshi OHKUBO , Hokuto EDA , Masazumi ARATA , Miyuki ASAI , Takahiro HOSOKAWA , Yuji MATSUURA
Abstract: Since each of an inner core, an outer core portion, and exterior portions in an element body is constituted by a magnetic body having the same material composition, internal stress is less likely to occur at the interface therebetween, and cracks due to internal stress are less likely to occur at the interface. Since a filling rate of a maximum magnetic particle having relatively high magnetic permeability is high in the inner core, the magnetic permeability of the inner core is significantly increased, and the coil characteristics of the coil component are improved.
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公开(公告)号：US20240331926A1
公开(公告)日：2024-10-03
申请号：US18618214
申请日：2024-03-27
Applicant: TDK Corporation
Inventor： Manabu OHTA , Ryo FUKUOKA , Yuji MATSUURA , Hokuto EDA , Takahiro NEMOTO , Kenei ONUMA , Masazumi ARATA , Hitoshi OHKUBO
Abstract: In the coil component, the lower end portion of the bump electrode protruding from the lower surface of the element body includes a flange portion, and the lower surface of the lower end portion is concave-convex. Therefore, compared to the case where the bump electrode is exposed in the form of a flat surface so as to be flat with the lower surface of the element body, the contact areas between the bump electrodes and the terminal electrodes are increased, and high connection reliability between the bump electrodes and the terminal electrodes is realized.
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