公开(公告)号：US20170330669A1

公开(公告)日：2017-11-16

申请号：US15590341

申请日：2017-05-09

Applicant: TDK Corporation

Inventor： Toshio TOMONARI ,  Sachiko TAKANO ,  Shigeki SATO

IPC: H01F17/00 ,  H01F27/29 ,  H01F10/26 ,  H01F5/00 ,  H01F27/28

CPC classification number: H01F17/0013 ,  H01F5/003 ,  H01F10/26 ,  H01F17/04 ,  H01F27/292 ,  H01F27/365 ,  H01F2003/106 ,  H01F2017/0053 ,  H01F2017/0066 ,  H01F2017/0073 ,  H01F2017/008 ,  H01F2027/2809

Abstract: Disclosed herein is a coil component that includes an element body made of a first magnetic material, a coil conductor embedded in the element body, and first and second magnetic films made of a second magnetic material having higher permeability than that of the first magnetic material. The element body has an upper surface crossing a coil axis of the coil conductor and first and second side surfaces extending substantially parallel to the coil axis. The first magnetic film is formed on the upper surface and first side surface of the element body, and the second magnetic film is formed on the upper surface and second side surface of the element body.

公开(公告)号：US20210225588A1

公开(公告)日：2021-07-22

申请号：US17224508

申请日：2021-04-07

Applicant: TDK CORPORATION

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

IPC: H01F41/04 ,  H01F17/00 ,  H01F27/29

Abstract: 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：US20190385792A1

公开(公告)日：2019-12-19

申请号：US16555169

申请日：2019-08-29

Applicant: TDK CORPORATION

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

IPC: H01F41/04

Abstract: 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：US20170154720A1

公开(公告)日：2017-06-01

申请号：US15363938

申请日：2016-11-29

Applicant: TDK Corporation

Inventor： Hitoshi OHKUBO ,  Kyohei TONOYAMA ,  Shigeki SATO

IPC: H01F27/255 ,  H01F27/29 ,  H01F27/32 ,  H01F27/42 ,  H01F27/02 ,  H01F27/28

CPC classification number: H01F27/255 ,  H01F17/0013 ,  H01F17/04 ,  H01F27/022 ,  H01F27/2804 ,  H01F27/292 ,  H01F27/324 ,  H01F27/42 ,  H01F2017/048 ,  H01F2027/2809

Abstract: A coil device comprising a coil, and a magnetic metal powder containing resin covering said coil. Said magnetic metal powder comprises at least two types of magnetic metal powders with different D50. The magnetic metal powder having larger D50 is defined as a large diameter powder, and the magnetic metal powder having smaller D50 is defined as a small diameter powder among the two types of said magnetic metal powder. Said large diameter powder is made of iron or iron based alloy. Said small diameter powder is made of Ni—Fe alloy. Said small diameter powder has D50 of 0.5 to 1.5 μm. Said large diameter powder and said small diameter powder respectively comprises an insulation coating layer.

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。

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

IPC: H01F27/02 ,  H01F41/04 ,  H01F27/28 ,  H01F41/02

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。

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。