公开(公告)号：US20200373064A1

公开(公告)日：2020-11-26

申请号：US16877772

申请日：2020-05-19

申请人： TDK CORPORATION

发明人： Miyuki ASAI ,  Hokuto EDA ,  Masazumi ARATA ,  Hitoshi OHKUBO

IPC分类号： H01F27/28 ,  H01F27/255 ,  H01F27/32

摘要： In a coil component, an uneven structure provided by an insulation layer and a resin wall contributes to extension of a contact area with respect to a magnetic body, so that an adhesive force with respect to the magnetic body is improved. In addition, the magnetic body protrudes downward toward an exposed region of the resin wall corresponding to a recessed portion in the uneven structure, a volume thereof is increased, and coil characteristics such as an inductance value are improved.

公开(公告)号：US20190385792A1

公开(公告)日：2019-12-19

申请号：US16555169

申请日：2019-08-29

申请人： TDK CORPORATION

发明人： Hitoshi OHKUBO ,  Masazumi ARATA ,  Manabu OHTA ,  Shou KAWADAHARA ,  Yoshihiro MAEDA ,  Takahiro KAWAHARA ,  Hokuto EDA ,  Shigeki SATO

IPC分类号： H01F41/04

摘要： In a coil component 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.

公开(公告)号：US20230063586A1

公开(公告)日：2023-03-02

申请号：US17898767

申请日：2022-08-30

申请人： TDK CORPORATION

发明人： Hokuto EDA ,  Hitoshi OHKUBO ,  Masazumi ARATA ,  Masataro SAITO ,  Kohei TAKAHASHI ,  Takamasa IWASAKI

IPC分类号： H01F1/14 ,  H01F5/04 ,  H01F5/06

摘要： Since the magnetic sheet is adopted as the coil component, magnetic saturation is likely to occur in the magnetic sheet, and it is considered that the DC superimposition characteristic of the coil component is deteriorated. However, since the inner edge of the coil structure backs down with respect to the inner edge of the magnetic sheet so that the magnetic flux generated in the coil easily circulates, the deterioration of the DC superimposition characteristics due to the adoption of the magnetic sheet is suppressed.

公开(公告)号：US20210327641A1

公开(公告)日：2021-10-21

申请号：US17233790

申请日：2021-04-19

申请人： TDK CORPORATION

发明人： Hokuto EDA ,  Masataro SAITO ,  Kohei TAKAHASHI ,  Takamasa IWASAKI

IPC分类号： H01F27/28 ,  H01F27/255

摘要： In a coil component, a stray capacitance may occur between a conducting wires of an upper layer and a conducting wires of a lower layer arranged in the vertical direction due to the potential difference between them. In the coil component, a separation distance between the conducting wire of the upper layer and the conducting wire of the lower layer is designed to be longer than twice a thickness of an insulation coating of a portion covering a side surface of the conducting wire, and a sufficiently long distance is secured, and thus the stray capacitance is reduced.

公开(公告)号：US20210193369A1

公开(公告)日：2021-06-24

申请号：US17126323

申请日：2020-12-18

申请人： TDK CORPORATION

发明人： Masataro SAITO ,  Masazumi ARATA ,  Hokuto EDA ,  Kohei TAKAHASHI ,  Takamasa IWASAKI

IPC分类号： H01F27/28 ,  H01F27/255 ,  H01F27/32

摘要： In a coil component, a non-magnetic part is bridged between a first coil and a second coil in a cross section of an element body. Therefore, a magnetic flux in a direction along a magnetic core of the first coil and a magnetic core of the second coil is hindered by the non-magnetic part between the first coil and the second coil. Accordingly, a magnetic flux of the first coil and a magnetic flux of the second coil are difficult to interfere with each other.

公开(公告)号：US20210166859A1

公开(公告)日：2021-06-03

申请号：US17109426

申请日：2020-12-02

申请人： TDK CORPORATION

发明人： Masataro SAITO ,  Masazumi ARATA ,  Hokuto EDA ,  Kohei TAKAHASHI ,  Takamasa IWASAKI

IPC分类号： H01F27/28 ,  H01F27/29 ,  H01F27/24

摘要： In a coil component, a first planar coil and a second planar coil are wound around a common magnetic core and are magnetically coupled to each other. However, the first planar coil and the second planar coil are not electrically connected to each other and form coil structures which are separate from each other. Thus, as compared with a case in which the first planar coil and the second planar coil form one coil structure, the first planar coil and the second planar coil are less likely to affect each other's characteristics.

公开(公告)号：US20230072929A1

公开(公告)日：2023-03-09

申请号：US17898736

申请日：2022-08-30

申请人： TDK CORPORATION

发明人： Hokuto EDA ,  Hitoshi OHKUBO ,  Masazumi ARATA ,  Masataro SAITO ,  Kohei TAKAHASHI ,  Takamasa IWASAKI

IPC分类号： H01F5/06 ,  H01F5/04 ,  H01F1/14

摘要： 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.

公开(公告)号：US20220392698A1

公开(公告)日：2022-12-08

申请号：US17829513

申请日：2022-06-01

申请人： TDK CORPORATION

发明人： Hokuto EDA ,  Hitoshi OHKUBO ,  Masazumi ARATA ,  Masataro SAITO ,  Kohei TAKAHASHI ,  Takamasa IWASAKI

IPC分类号： H01F27/32 ,  H01F27/29 ,  H01F27/255

摘要： 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.

公开(公告)号：US20210327637A1

公开(公告)日：2021-10-21

申请号：US17234029

申请日：2021-04-19

申请人： TDK CORPORATION

发明人： Hokuto EDA ,  Masataro SAITO ,  Kohei TAKAHASHI ,  Takamasa IWASAKI ,  Hitoshi OHKUBO ,  Masazumi ARATA

IPC分类号： H01F27/28 ,  H01F27/29 ,  H01F27/255 ,  H01F27/32

摘要： 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.

公开(公告)号：US20160351316A1

公开(公告)日：2016-12-01

申请号：US15166519

申请日：2016-05-27

申请人： TDK CORPORATION

发明人： Hitoshi OHKUBO ,  Masazumi ARATA ,  Manabu OHTA ,  Yuuya KANAME ,  Yoshihiro MAEDA ,  Takahiro KAWAHARA ,  Hokuto EDA ,  Shigeki SATO

IPC分类号： H01F27/255 ,  H01F27/28

摘要： 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.

摘要翻译： 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。