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公开(公告)号：US20170125158A1
公开(公告)日：2017-05-04
申请号：US15407727
申请日：2017-01-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshitoshi SHODA , Kozo SATO , Makoto MURAKAMI , Kunio SASAMORI , Naoto TAKAHASHI
IPC: H01F27/29 , H01F41/076 , H01F41/02 , H01F27/28
CPC classification number: H01F27/292 , H01F17/04 , H01F27/2828 , H01F41/0246 , H01F41/076 , H01F2017/048
Abstract: A formed body incorporating a coil by using: a coil formed by winding a conductive wire, and a formed body incorporating the coil, the formed body being formed with a sealing material containing a resin and a magnetic material. The coil is formed by winding the conductive wire so that lead-out ends are positioned at an outer periphery of a wound portion. The formed body is formed so that surfaces of the coil are partially exposed on four side surfaces of the formed body which are parallel to a winding axis of the coil, and the area of a portion of the formed body outside the outer periphery of the wound portion is almost equal to or smaller than the area of a portion of the formed body inside an inner periphery of the wound portion of the coil.
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公开(公告)号：US20200312528A1
公开(公告)日：2020-10-01
申请号：US16830048
申请日：2020-03-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kozo SATO , Hiroshi OKUIZUMI , Yoshiharu SATOU
IPC: H01F27/28 , H01F27/29 , H01F27/24 , H01F41/02 , H01F41/061
Abstract: An inductor includes a body that includes a coil and that contains a magnetic portion in which the coil is embedded, and a pair of outer electrodes that is disposed on a mounting surface of the body. The coil includes a winding portion formed by winding a conductive wire that has a coating layer and that has a pair of wide surfaces, and a pair of extended portions that extends from the winding portion. The pair of extended portions includes a twisted portion that is connected to the winding portion. The twisted portion is twisted about a virtual center line of an end portion of the winding portion, and a twisted part bends toward the mounting surface about an axis substantially perpendicular to the wide surfaces at the end portion. End portions of the pair of extended portions near the mounting surface are connected to the pair of outer electrodes.
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公开(公告)号：US20200152373A1
公开(公告)日：2020-05-14
申请号：US16533707
申请日：2019-08-06
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kozo SATO , Mikiya AOKI , Hiroyuki AOKI , Kazuhisa KITAMURA
IPC: H01F27/29 , H01F17/04 , H01F27/28 , H01F27/255 , H01F41/06
Abstract: A surface-mount inductor includes an element assembly having a core, a coil, and a magnetic material; and a pair of external terminals on a mounting surface of the element assembly. The core has a base portion and a columnar portion on an upper surface of the base portion. The coil is disposed on the base portion, and has a wound portion on the columnar portion, and a pair of extended portions extended from the wound portion. In a cross-section parallel to a winding axis, the wound portion has, in at least a part of a region where the upper stage and the lower stage are in contact with or oppose each other, a boundary surface formed by one portion of a conductive wire at one of upper and lower stage sides being in contact with or opposing a plurality of portions of the conductive wire at the other side.
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公开(公告)号：US20190199298A1
公开(公告)日：2019-06-27
申请号：US16217506
申请日：2018-12-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kiichiro TAKENAKA , Masahiro ITO , Tsuyoshi SATO , Kozo SATO , Hidetoshi MATSUMOTO
Abstract: A matching network is a matching network of a power amplifier circuit that outputs a signal obtained by a differential amplifier amplifying power of a high-frequency signal. The matching network includes an input-side winding connected between differential outputs of the differential amplifier; an output-side winding that is coupled to the input-side winding via an electromagnetic field and whose one end is connected to a reference potential; a first LC series resonant circuit including a capacitive element and an inductive element connected in series with each other, and being connected in parallel with the input-side winding; and a second LC series resonant circuit including a capacitive element and an inductive element connected in series with each other, and being connected in parallel with the output-side winding.
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公开(公告)号：US20210098184A1
公开(公告)日：2021-04-01
申请号：US17033536
申请日：2020-09-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi OKUIZUMI , Kozo SATO
IPC: H01F27/29 , H01F27/28 , H01F27/255 , H01F41/02 , H01F41/063
Abstract: An inductor includes a body including a magnetic portion and a coil embedded in the magnetic portion and outer electrodes. The coil includes a wound portion formed by winding a conductive wire having a pair of wide surfaces in upper and lower layers and first and second lead-out portions extending from end portions of the wound portion at outermost peripheries of the upper and lower layers. One wide surface of a distal end portion of the first lead-out portion is exposed at a mounting surface of the body, a first surface adjacent to the mounting surface, and a corner portion therebetween. One wide surface of a distal end portion of the second lead-out portion is exposed at the mounting surface, a second surface adjacent to the mounting surface, and a corner portion therebetween. The outer electrodes cover the exposed wide surfaces of the first and second lead-out portions.
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Patent Agency Ranking
公开(公告)号：US20200152367A1
公开(公告)日：2020-05-14
申请号：US16533697
申请日：2019-08-06
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kozo SATO , Mikiya AOKI , Hiroyuki AOKI , Kazuhisa KITAMURA
Abstract: A surface-mount inductor includes an element assembly having a core, a coil, and a magnetic material; and a pair of external terminals disposed on a mounting surface of the element assembly. The core has a base portion and a columnar portion on an upper surface of the base portion. The coil is disposed on the base portion, and has a wound portion on the columnar portion, and a pair of extended portions extended from the wound portion toward a side surface of the base portion. The magnetic material includes the coil and covers at least a part of the core. The external terminals are disposed on the mounting surface of the element assembly and connected to the extended portions. The surface-mount inductor has, on a surface at a mounting surface side of the wound portion, a curved portion that is curved toward a side opposite to the mounting surface.
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公开(公告)号：US20230317350A1
公开(公告)日：2023-10-05
申请号：US18184579
申请日：2023-03-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kozo SATO , Minoru GIBU
CPC classification number: H01F27/2804 , H01F1/24 , H01F5/06 , H01F27/29 , H01F27/022 , H01F2027/2809
Abstract: A coil component that is a multilayer coil component includes an element assembly containing a magnetic material, a coil embedded in the element assembly, an outer electrode electrically coupled to the coil and disposed on a bottom surface of the element assembly, and an insulating layer disposed on the bottom surface of the element assembly. The insulating layer has a cavity, and the outer electrode is disposed in the cavity.
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8.发明申请公开(公告)号：US20250022648A1
公开(公告)日：2025-01-16
申请号：US18771316
申请日：2024-07-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kozo SATO , Ryota WATANABE
IPC: H01F27/28 , H01F27/255 , H01F27/29 , H01F27/32
Abstract: A multilayer inductor includes an element body that constitutes a magnetic body by stacking magnetic layers containing iron powder and that has a coil obtained by winding a coil conductor inside the magnetic body, and an outer electrode that is electrically connected to the coil conductor. A resin is provided in voids inside the magnetic body, and the resin is provided in at least a part of pores in the coil conductor at least in a vicinity of a magnetic layer.
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公开(公告)号：US20240105380A1
公开(公告)日：2024-03-28
申请号：US18365855
申请日：2023-08-04
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kozo SATO , Yuichi OHBA
IPC: H01F27/29 , H01F27/255
CPC classification number: H01F27/292 , H01F27/255
Abstract: A coil component having improved magnetic characteristics. The coil component includes a body having a substantially hexahedral shape and including a winding portion formed by winding a conductive wire based on a winding axis and a magnetic body portion; and paired metal terminals having joint portions to which first and second ends of the conductive wire are electrically connected. Each of the paired metal terminals extends outside an outer surface of the body parallel to the winding axis. Of four quadrants separated from one another by imaginary coordinate axes that are orthogonal to one another with the center of the body as the origin in plan view in the winding axis direction, more than half the area of one of the joint portions is disposed in a quadrant not adjacent to the quadrant in which more than half the area of the other joint portion is disposed.
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公开(公告)号：US20230207183A1
公开(公告)日：2023-06-29
申请号：US18171141
申请日：2023-02-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kozo SATO , Hiroshi OKUIZUMI , Yoshiharu SATOU
IPC: H01F27/28 , H01F41/02 , H01F27/24 , H01F27/29 , H01F41/061
CPC classification number: H01F27/2823 , H01F41/0246 , H01F27/24 , H01F27/29 , H01F41/061
Abstract: An inductor includes a body that includes a coil and that contains a magnetic portion in which the coil is embedded, and a pair of outer electrodes that is disposed on a mounting surface of the body. The coil includes a winding portion formed by winding a conductive wire that has a coating layer and that has a pair of wide surfaces, and a pair of extended portions that extends from the winding portion. The pair of extended portions includes a twisted portion that is connected to the winding portion. The twisted portion is twisted about a virtual center line of an end portion of the winding portion, and a twisted part bends toward the mounting surface about an axis substantially perpendicular to the wide surfaces at the end portion. End portions of the pair of extended portions near the mounting surface are connected to the pair of outer electrodes.
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