公开(公告)号：US20200090850A1

公开(公告)日：2020-03-19

申请号：US16544505

申请日：2019-08-19

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hideyuki ISOBE ,  Masaki KITAJIMA

IPC: H01F27/02 ,  H01F41/00 ,  H01F17/04 ,  H01F27/29 ,  H01F27/36 ,  H01F27/28

Abstract: A surface mount inductor includes a coil buried in a composite material including a magnetic powder; outer terminals connected to the coil; and a molded body having a metal surface that intersects a winding axis of the coil and including the composite material. A surface mount inductor manufacturing method includes arranging, inside a mold, a metal plate having a shape covering part of a surface of a molded body; arranging a coil and a composite material including a magnetic powder or a preliminary molded body composed of the composite material inside the mold in which the metal plate has been arranged; and forming a molded body in which the coil is buried and that has the metal plate arranged on part of a surface of the molded body by molding the metal plate, the composite material, and the coil inside the mold to be integrated with each other.

公开(公告)号：US20160314892A1

公开(公告)日：2016-10-27

申请号：US15200797

申请日：2016-07-01

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Hiromu FUKUSHIMA ,  Masaki KITAJIMA ,  Kuniaki YOSUI

IPC: H01F27/28 ,  H01F27/29

CPC classification number: H01F27/2804 ,  H01F17/0013 ,  H01F17/0033 ,  H01F27/29 ,  H01F2027/2809

Abstract: The electric circuit includes a first inductor and a third inductor that, when viewed in plan view from a first direction, wind around a first axis extending in the first direction, and a second inductor that, when viewed in plan view from the first direction, winds around a second axis extending in the first direction. A second region where the second inductor is provided overlaps, in the first direction, with a first region where the first inductor is provided or a third region where the third inductor is provided. When a common mode signal is inputted to the first inductor to third inductor, the orientation of a magnetic field produced in the first axis by the first inductor and the third inductor is opposite from the orientation of a magnetic field produced in the second axis by the second inductor.

Abstract translation: 电路包括第一电感器和第三电感器，当从第一方向在俯视图中观察时，围绕沿第一方向延伸的第一轴线和第二电感器，当从第一方向的俯视图中观察时， 围绕沿第一方向延伸的第二轴线缠绕。 第二电感器的第二区域在第一方向上与设置第一电感器的第一区域或设置有第三电感器的第三区域重叠。 当共模信号被输入到第三电感器的第一电感器时，由第一电感器和第三电感器在第一轴产生的磁场的取向与第二轴产生的磁场的取向相反， 第二电感。

公开(公告)号：US20190304665A1

公开(公告)日：2019-10-03

申请号：US16264496

申请日：2019-01-31

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yuki KITASHIMA ,  Masaki KITAJIMA ,  Takeo OHAGA ,  Takeshi SHIMADA ,  Yoshiaki HIRAMA ,  Daigo MIZUMURA ,  Ryota WATANABE ,  Masato KOIKE ,  Yuusuke MORITA

IPC: H01F27/29 ,  H01F27/28 ,  H01F41/04 ,  H01F27/255 ,  H01F41/02

Abstract: A surface mount inductor includes a coil including a wound portion and a feeder end portion drawn out from the wound portion, a compact that contains a magnetic powder and that encapsulates the coil, and an external terminal disposed on the compact and connected to the coil. The compact has surfaces including two pressed surfaces, opposing each other in a direction of an axis of the wound portion and formed by being pressed in the direction of the axis, and a non-pressed surface, adjacent to the two surfaces and not pressed. The coil is disposed so that the axis of the wound portion is parallel to a mount surface of the compact. The mount surface is included in the non-pressed surface, the feeder end portion is exposed from the mount surface, and the external terminal is formed on only the non-pressed surface and connected to the feeder end portion.

公开(公告)号：US20160012961A1

公开(公告)日：2016-01-14

申请号：US14735598

申请日：2015-06-10

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Hironori SUZUKI ,  Masaki KITAJIMA

IPC: H01F27/29 ,  H01F27/28 ,  H01F41/02 ,  H01F27/255

CPC classification number: H01F27/29 ,  H01F27/255 ,  H01F27/2804 ,  H01F41/02

Abstract: In an inductor component, fallen-off-filler marks that are formed as a result of a filler falling off from an outer surface of a component body are present in a dotted manner in portions of the outer surface that are in contact with outer electrodes. As a result of the filler falling off, a joining area at interfaces between the component body and the outer electrodes increases, and stress generated at the interfaces between the component body and the outer electrodes is reduced.

Abstract translation: 在电感器部件中，作为填料从部件主体的外表面脱落而形成的脱落痕迹以与外部电极接触的外表面部分中的虚线方式存在。 由于填料脱落，组件主体和外部电极之间的界面处的接合面积增加，并且在构件体和外部电极之间的界面处产生的应力减小。

公开(公告)号：US20250037922A1

公开(公告)日：2025-01-30

申请号：US18783364

申请日：2024-07-24

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masaki KITAJIMA ,  Yoshitaka MURAKAMI

IPC: H01F27/26 ,  H01F5/02

Abstract: A coil component includes a drum core as a first core and a top plate as a second core. The coil component also includes a wire and an adhesive. The adhesive includes a bisphenol F resin, magnetic powder, and a curing agent. A cross section perpendicular to an adhesion surface between the adhesive and the drum core is set to a specific cross section. A direction perpendicular to the adhesion surface is set to a thickness direction. A direction perpendicular to the thickness direction in the specific cross section is set to an extending direction. The adhesive includes a resin portion in the specific cross section. The resin portion is a portion which does not contain the magnetic powder in the thickness direction in a range between the drum core and the top plate and which is continuously disposed by 3 μm or larger in the extending direction.

公开(公告)号：US20160336110A1

公开(公告)日：2016-11-17

申请号：US15219857

申请日：2016-07-26

Applicant: MURATA MANUFACTURING CO., LTD. ,  TOKO, INC.

Inventor： Masaki KITAJIMA ,  Yoshiharu SATO

IPC: H01F27/29 ,  H01F41/02 ,  H01F27/28

CPC classification number: H01F27/292 ,  H01F17/04 ,  H01F27/2804 ,  H01F41/02 ,  H01F41/046 ,  H01F2017/048 ,  H01F2027/2809

Abstract: An electronic component including: a body having a shape of a rectangular parallelepiped, the body including a first end surface and a second end surface opposed to each other and a mounting surface; and a first external electrode provided on the first end surface and the mounting surface. A first portion of the first end surface inclines from a direction normal to the mounting surface so as to come closer to the second end surface with decreasing distance from the mounting surface in the normal direction, the first portion being a portion within a predetermined distance from the mounting surface in the normal direction. A thickness of a portion of the first external electrode contacting the first portion becomes greater with decreasing distance from the mounting surface in the normal direction.

Abstract translation: 一种电子部件，包括：具有长方体形状的本体，所述主体包括彼此相对的第一端面和第二端面以及安装面; 以及设置在所述第一端面和所述安装面上的第一外部电极。 所述第一端面的第一部分从垂直于所述安装面的方向倾斜，以随着距所述安装面沿法线方向的距离减小而靠近所述第二端面，所述第一部分是距离所述安装面的预定距离内的部分 安装面在正常方向。 与第一部分接触的第一外部电极的一部分的厚度随着与正常方向上的安装表面的距离的减小而变大。

公开(公告)号：US20160172100A1

公开(公告)日：2016-06-16

申请号：US15052296

申请日：2016-02-24

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Kosuke ISHIDA ,  Sayaka SEKIGUCHI ,  Masaki KITAJIMA

IPC: H01F27/28 ,  H01F27/29 ,  H01F27/245

CPC classification number: H01F27/2804 ,  H01F17/0013 ,  H01F27/245 ,  H01F27/29 ,  H01F2017/0073 ,  H01F2017/0093 ,  H01F2027/2809

Abstract: An electronic component includes a main body formed from an insulative material, coil conductors, outer electrodes provided on a surface of the main body, and outer pads. Each coil conductor is constituted by a spiral-shaped coil portion and a lead portion connected to the coil portion and extending linearly. The outer pads connect the lead portions to the outer electrodes. At a contact point that connects one of the coil portions to their corresponding one of the lead portions, an angle formed by the coil portion and the lead portion is an obtuse angle.

Abstract translation: 电子部件包括由绝缘材料形成的主体，线圈导体，设置在主体的表面上的外部电极和外部焊盘。 每个线圈导体由螺旋形的线圈部分和连接到线圈部分并且线性延伸的引线部分构成。 外部焊盘将引线部分连接到外部电极。 在将线圈部分中的一个连接到其相应的引线部分的接触点处，由线圈部分和引线部分形成的角度是钝角。

公开(公告)号：US20190311841A1

公开(公告)日：2019-10-10

申请号：US16373543

申请日：2019-04-02

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryota WATANABE ,  Masaki KITAJIMA ,  Takeo OHAGA

IPC: H01F27/29 ,  H01F41/06 ,  H01F27/28

Abstract: A surface mount inductor includes a coil including a conducting wire winding portion with both ends on the outer circumference and a pair of extension portions that extend from the outer circumference, a molded body containing a metal magnetic powder and the coil embedded, and a pair of outer terminals disposed on the molded body and connected to the extension portions. The molded body has principal surfaces, end surfaces, and side surfaces. One principal surface serves as a mounting surface including a recessed portion with an elevated region and a lowered region. The coil is embedded in the molded body with the winding axis of the winding portion parallel to the recessed portion, and the pair of extension portions extend from the outer circumference toward the mounting surface to be exposed at the lowered region and connected to the pair of outer terminals in the lowered region.

公开(公告)号：US20160314890A1

公开(公告)日：2016-10-27

申请号：US15204113

申请日：2016-07-07

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Masaki KITAJIMA ,  Takashi TOMOHIRO ,  Gota SHINOHARA ,  Hironori SUZUKI ,  Noriko SHIMIZU

IPC: H01F27/255 ,  H01F41/02 ,  H01F27/29

CPC classification number: H01F27/255 ,  H01F17/0033 ,  H01F27/292 ,  H01F41/0206 ,  H01F41/0246 ,  H01F41/046 ,  H01F2017/0066

Abstract: An electronic component includes a body made of a material containing particles of a metallic magnetic material, and an outer electrode disposed on a surface of the body. The surface of the body has a contact portion with which the outer electrode is in contact, and the surface of the body includes particles of the metallic magnetic material which are exposed from the surface of the body.

Abstract translation: 电子部件包括由包含金属磁性材料的颗粒的材料制成的主体和设置在主体的表面上的外部电极。 本体的表面具有与外部电极接触的接触部分，并且主体的表面包括从主体表面露出的金属磁性材料的颗粒。

公开(公告)号：US20160099098A1

公开(公告)日：2016-04-07

申请号：US14872980

申请日：2015-10-01

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Koichi YAMAGUCHI ,  Masaki KITAJIMA ,  Akinori HAMADA

IPC: H01F27/24

CPC classification number: H01F17/0006 ,  H01F17/04 ,  H01F27/292

Abstract: An electronic component includes a body and a coil. The body includes first to fourth insulator layers composed of an anisotropic magnetic material, an internal magnetic circuit composed of an isotropic magnetic material and an external magnetic circuit composed of an isotropic magnetic material. The second and third insulator layers cover an upper surface and a lower surface of the coil from a z-axis direction. The internal magnetic circuit and the external magnetic circuit are adjacent to each other in a direction orthogonal to the z-axis direction. In addition, a direction of easy magnetization of the anisotropic magnetic material used in the first to fourth insulator layers is orthogonal to the z-axis direction.

Abstract translation: 电子部件包括主体和线圈。 本体包括由各向异性磁性材料构成的第一至第四绝缘体层，由各向同性磁性材料构成的内部磁路和由各向同性磁性材料构成的外部磁路。 第二和第三绝缘体层从z轴方向覆盖线圈的上表面和下表面。 内部磁路和外部磁路在与z轴方向正交的方向上彼此相邻。 此外，在第一至第四绝缘体层中使用的各向异性磁性材料容易磁化的方向与z轴方向正交。