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公开(公告)号：US20230215617A1
公开(公告)日：2023-07-06
申请号：US18119457
申请日：2023-03-09
Applicant: TDK CORPORATION
Inventor： Takahiro KAWAHARA , Manabu OHTA , Kenei ONUMA , Yuuya KANAME , Ryo FUKUOKA , Hokuto EDA , Masataro SAITO , Kohei TAKAHASHI
CPC classification number: H01F27/292 , H01F17/0013 , H01F17/04 , H01F41/041 , H05K1/181 , H01F27/2804 , H01F2017/048
Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.
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公开(公告)号：US20230072929A1
公开(公告)日：2023-03-09
申请号：US17898736
申请日：2022-08-30
Applicant: TDK CORPORATION
Inventor： Hokuto EDA , Hitoshi OHKUBO , Masazumi ARATA , Masataro SAITO , Kohei TAKAHASHI , Takamasa IWASAKI
Abstract: In the coil component, external stress applied when the upper coil structure, the lower coil structure, and the magnetic sheet are stacked is dispersed by the undulation of both main surfaces of the magnetic sheet. By dispersing the stress in this manner, a situation in which defects such as cracks occur in the coil structure is effectively suppressed.
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公开(公告)号：US20220392698A1
公开(公告)日：2022-12-08
申请号：US17829513
申请日：2022-06-01
Applicant: TDK CORPORATION
Inventor： Hokuto EDA , Hitoshi OHKUBO , Masazumi ARATA , Masataro SAITO , Kohei TAKAHASHI , Takamasa IWASAKI
IPC: H01F27/32 , H01F27/29 , H01F27/255
Abstract: A coil component improving insulation between external terminals provided on the same surface of an element body is provided. In the coil component, when a voltage is applied via the external terminal electrode, for example, a potential difference may occur between the outer end portions. In the coil component, since the insulation between the outer end portions is enhanced by the upper insulator exposed on the end face of the element body, even when a potential difference occurs between the outer end portions, a situation in which the outer end portions are short-circuited on the end face is prevented.
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公开(公告)号：US20210327637A1
公开(公告)日：2021-10-21
申请号：US17234029
申请日：2021-04-19
Applicant: TDK CORPORATION
Inventor： Hokuto EDA , Masataro SAITO , Kohei TAKAHASHI , Takamasa IWASAKI , Hitoshi OHKUBO , Masazumi ARATA
IPC: H01F27/28 , H01F27/29 , H01F27/255 , H01F27/32
Abstract: In an insulation layer of a coil component, a thickness of a second covering part and a third covering part located on the penetration hole side of a first covering part is thinner than that of the first covering part. A stray capacitance occurring between a flat coil pattern and external terminal electrodes is reduced by making the first covering part of the insulation layer thicker than the second covering part and the third covering part. Further, since the second covering part and the third covering part of the insulation layers are thinner than the first covering part, a magnetic volume is increased while external dimensions of the base body is maintained, and thus a high inductance is realized.
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公开(公告)号：US20160351316A1
公开(公告)日：2016-12-01
申请号：US15166519
申请日：2016-05-27
Applicant: TDK CORPORATION
Inventor： Hitoshi OHKUBO , Masazumi ARATA , Manabu OHTA , Yuuya KANAME , Yoshihiro MAEDA , Takahiro KAWAHARA , Hokuto EDA , Shigeki SATO
IPC: H01F27/255 , H01F27/28
Abstract: A coil component in which a change in thicknesses of the winding part is prevented is provided. According to the coil component, since each of a pair of neighboring resin walls and a seed part between the pair of resin walls are separated by a predetermined distance, a plating part grown on the seed part is easy to grow uniformly between the pair of neighboring resin walls. For this reason, the winding part whose surface is gentle and in which a change in thickness is prevented is obtained by plating growth.
Abstract translation: 提供防止卷绕部的厚度变化的线圈部件。 根据线圈部件，由于一对相邻树脂壁和一对树脂壁之间的种子部分中的每一个分开预定距离，所以在种子部分上生长的电镀部分容易在所述一对相邻的树脂壁之间均匀地生长 树脂墙壁。 由于这个原因，通过电镀生长获得表面平缓并且其中防止厚度变化的卷绕部分。
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Patent Agency Ranking
公开(公告)号：US20160155556A1
公开(公告)日：2016-06-02
申请号：US14951004
申请日：2015-11-24
Applicant: TDK CORPORATION
Inventor： Hitoshi OHKUBO , Masazumi ARATA , Manabu OHTA , Shou KAWADAHARA , Yoshihiro MAEDA , Takahiro KAWAHARA , Hokuto EDA , Shigeki SATO
CPC classification number: H01F41/043 , H01F17/0013 , H01F27/292 , H01F41/046 , H01F2017/0066
Abstract: In a coil component 1 and a method for manufacturing the same, a winding part of a coil is grown by plating so as to extend between resin walls of a resin body provided before the coil is grown by plating. The resin wall is interposed between adjacent turns of the winding part of the coil during the plating growth, and therefore contact between adjacent turns of the winding part of the coil cannot occur.
Abstract translation: 在线圈部件1及其制造方法中，通过电镀生长线圈的绕组部分，以便在通过电镀生长线圈之前提供的树脂体的树脂壁之间延伸。 在电镀生长期间，树脂壁插入在线圈的绕组部分的相邻匝之间，因此不能发生线圈的绕组部分的相邻匝之间的接触。
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公开(公告)号：US20160155550A1
公开(公告)日：2016-06-02
申请号：US14952028
申请日：2015-11-25
Applicant: TDK CORPORATION
Inventor： Hitoshi OHKUBO , Masazumi ARATA , Manabu OHTA , Shou KAWADAHARA , Yoshihiro MAEDA , Takahiro KAWAHARA , Hokuto EDA , Shigeki SATO
IPC: H01F3/08
CPC classification number: H01F1/24 , H01F17/0013 , H01F17/04 , H01F27/292 , H01F2017/048
Abstract: In a coil component (planar coil element), at least part of a third metal magnetic powder constituting a metal magnetic powder and having a minimum average grain diameter is uncoated, which suppresses a reduction in magnetic permeability. On the other hand, the remaining metal powders are coated with glass, which improves the insulating properties of a metal magnetic powder-containing resin and reduces core loss.
Abstract translation: 在线圈部件（平面线圈元件）中，构成金属磁性粉末的具有最小平均粒径的第三金属磁性粉末的至少一部分是未涂覆的，这抑制了磁导率的降低。 另一方面，剩余的金属粉末涂覆有玻璃，这提高了含金属磁性粉末的树脂的绝缘性能并降低铁损。
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公开(公告)号：US20240234018A9
公开(公告)日：2024-07-11
申请号：US18490358
申请日：2023-10-19
Applicant: TDK CORPORATION
Inventor： Hokuto EDA , Masataro SAITO , Kohei TAKAHASHI , Takamasa IWASAKI , Hiroki ASAFUSA , Takahiro NEMOTO
CPC classification number: H01F27/292 , H01F27/2804 , H01F27/306
Abstract: Since the coil body of the coil component includes a plurality of coils and the first coil is one of the plurality of coils included in the coil body, the current route from the external terminal of the first to the outer peripheral turn of the second coil portion where stray capacitance occurs is significantly shorter than the route of current flowing between the pair of external terminals, and the voltage drop in the outer peripheral turn of the second coil portion is relatively small, so that stray capacitance between the second coil portion and the first external terminal is small.
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公开(公告)号：US20240234010A9
公开(公告)日：2024-07-11
申请号：US18490293
申请日：2023-10-19
Applicant: TDK CORPORATION
Inventor： Hokuto EDA , Masataro SAITO , Kohei TAKAHASHI , Takamasa IWASAKI , Hiroki ASAFUSA , Takahiro NEMOTO
IPC: H01F27/28
CPC classification number: H01F27/2852
Abstract: The coil body of the coil component includes a first coil, a second coil, and a third coil arranged in order along one direction when viewed from the facing direction of the pair of main surfaces of the element body. The first coil, the second coil, and the third coil have alternating winding directions, and the number of turns of the second coil is relatively small, thereby improving the characteristics of the coil component.
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公开(公告)号：US20240194392A1
公开(公告)日：2024-06-13
申请号：US18528876
申请日：2023-12-05
Applicant: TDK CORPORATION
Inventor： Masataro SAITO , Hitoshi OHKUBO , Masazumi ARATA , Hokuto EDA , Kohei TAKAHASHI , Takamasa IWASAKI , Ryo FUKUOKA
IPC: H01F27/28
CPC classification number: H01F27/2804 , H01F2027/2809
Abstract: In the coil component, the thickness of the first coil portion and the thickness of the second coil portion are different from each other in the thickness direction of the substrate, thereby achieving improvement in characteristics such as self-resonance frequencies and heat dissipation.
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