公开(公告)号：US20210287837A1

公开(公告)日：2021-09-16

申请号：US17197981

申请日：2021-03-10

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tomoyuki WADA

IPC: H01F17/04 ,  H01F27/29 ,  H01F27/28 ,  H01F41/04

Abstract: A winding core includes a plurality of terminal electrodes on each flange portion, with a plurality of end surface electrode portions arranged at an interval on an outer end surface of the flange portion. To secure a predetermined interval between each of the plurality of end surface electrode portions, it is desirable for the dimension of each end surface electrode portion in a width direction to be as narrow as possible. Thus, a mask for forming an end surface base electrode layer, which is a base of an end surface electrode portion in a patterned state by sputtering, is improved to narrow a penetration passage through which particles of a film forming material pass. Thus, the dimension of the end surface base electrode layers, which are arranged at an interval in the width direction, in the width direction is less than 0.1 mm at the maximum value.

公开(公告)号：US20200075220A1

公开(公告)日：2020-03-05

申请号：US16538581

申请日：2019-08-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tomoyuki WADA ,  Kiyoyasu SAKURADA ,  Yoshiyuki OOTA ,  Kouki OKAMURA

IPC: H01F27/28 ,  H01F17/04 ,  H01F17/00 ,  H01F1/34 ,  H01F41/04 ,  H01F41/12

Abstract: A multilayer coil component includes an element body that includes a plurality of insulating layers laminated together, a coil that is embedded in the element body and that includes a plurality of coil conductor layers provided between the insulating layers, and a first outer electrode and a second outer electrode each of which is provided on an outer surface of the element body and each of which is electrically connected to the coil. When viewed in cross section in a lamination direction in which the plurality of insulating layers are laminated together, end surfaces of the coil conductor layers, the end surfaces facing outward of the element body, are substantially straight in the lamination direction, and end surfaces of the coil conductor layers, the end surfaces facing inward of the element body, are inclined or bent with respect to the lamination direction.

公开(公告)号：US20220130597A1

公开(公告)日：2022-04-28

申请号：US17499801

申请日：2021-10-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tomoyuki WADA ,  Kazuto SHIBUYA ,  Seiya YUKI ,  Yuki KANBE

IPC: H01F27/28 ,  H01F17/04 ,  H01F27/29

Abstract: A coil component includes a core that has a columnar winding core portion and a flange formed at an end of the winding core portion in an axial direction. The coil component also includes a terminal electrode formed at an end surface of the flange and a wire being wound around the winding core portion with one end portion coupled to the terminal electrode. The flange protrudes toward the first end of the coil component in the first direction. A curved surface and an inclined surface are formed at a boundary between a surface of the flange and a peripheral surface of the winding core portion. The inclined surface has a curvature smaller than that of the curved surface. In addition, the inclined surface is disposed where the wire intersects the boundary as viewed in the first direction.

公开(公告)号：US20220102063A1

公开(公告)日：2022-03-31

申请号：US17469770

申请日：2021-09-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yuki KANBE ,  Tomoyuki WADA ,  Kazuto SHIBUYA ,  Seiya YUKI

IPC: H01F27/29 ,  H01F27/02 ,  H01F27/24 ,  H01F27/28

Abstract: A coil component includes a core having a winding core portion and one pair of guard portions, a terminal electrode provided on each guard portion, and a wire wound around the winding core portion and having both ends electrically connected to the terminal electrodes. Each guard portion has an inner end face, an outer end face, a bottom surface, a top surface, and two side surfaces. Each terminal electrode has a bottom surface electrode portion continuous over at least the bottom surface and an outer end face electrode portion on the outer end face. The bottom surface electrode portion has a side surface extension portion located lower than a lowest portion of the winding core portion. The outer end face electrode portion is connected to the bottom surface electrode portion, and both end edges of the outer end face electrode portion are located away from both the side surfaces.

公开(公告)号：US20160118183A1

公开(公告)日：2016-04-28

申请号：US14883765

申请日：2015-10-15

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Tomoyuki WADA

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

CPC classification number: H01F27/292 ,  H01F17/045 ,  H01F27/2823

Abstract: A core of a coil component is formed of a first flange, a second flange, and a winding core connecting the first flange and the second flange to each other. A winding is wound around the winding core. The core is formed of a first part and a second part, the second part having a smaller magnetic permeability and a higher rigidity than the first part. The second part is formed of an end portion of the first flange on one side in an extension direction of the first flange and an end portion of the second flange on one side in an extension direction of the second flange.

Abstract translation: 线圈部件的芯由第一凸缘，第二凸缘和将第一凸缘和第二凸缘彼此连接的卷芯组成。 绕组缠绕在绕组芯上。 芯部由第一部分和第二部分形成，第二部分具有比第一部分更小的导磁率和更高的刚性。 第二部分由在第一凸缘的延伸方向的一侧上的第一凸缘的端部和在第二凸缘的延伸方向上的一侧上的第二凸缘的端部形成。