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公开(公告)号：US20220310305A1
公开(公告)日：2022-09-29
申请号：US17694971
申请日：2022-03-15
Applicant: TDK CORPORATION
Inventor： Youichi KAZUTA , Kazuya TOBITA , Yuto SHIGA , Yuichi TAKUBO , Junichiro URABE , Noriaki HAMACHI , Toshinori MATSUURA
Abstract: A multilayer coil component 1 includes an element body 2, a coil 5, a first terminal electrode 3, a second terminal electrode 4, a first connecting conductor 6, and a second connecting conductor 7. The first connecting conductor 6 extends along a first direction D1 and has a third side 6c intersecting with a second direction D2 and a third direction D3 in a cross section orthogonal to the extension direction. The coil 5 faces the third side 6c of the first connecting conductor 6 when viewed from the first direction D1, and a side 5a facing the third side 6c is parallel to the third side 6c at the part that faces the third side 6c of the first connecting conductor 6.
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公开(公告)号：US20220293333A1
公开(公告)日：2022-09-15
申请号：US17690489
申请日：2022-03-09
Applicant: TDK CORPORATION
Inventor： Junichiro URABE , Hajime KATO , Toshinori MATSUURA , Kazuya TOBITA , Yuto SHIGA , Yuichi TAKUBO , Youichi KAZUTA , Noriaki HAMACHI
Abstract: A coil component includes an exterior body, a coil, and a pair of terminal electrodes. The coil is disposed inside the exterior body. The pair of terminal electrodes are electrically connected to the coil and are disposed on the exterior body. The exterior body includes a first portion that covers the coil and is made of a resin, and a second portion including a side surface on which the pair of terminal electrodes are disposed. The second portion includes a material having a relative permittivity lower than a relative permittivity of the resin and is disposed between the coil and the pair of terminal electrodes.
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公开(公告)号：US20220246346A1
公开(公告)日：2022-08-04
申请号：US17590888
申请日：2022-02-02
Applicant: TDK CORPORATION
Inventor： Yuto SHIGA , Youichi KAZUTA , Yuichi TAKUBO , Junichiro URABE , Noriaki HAMACHI , Kazuya TOBITA , Toshinori MATSUURA
Abstract: A multilayer coil component includes: an element body including a plurality of insulator layers that are laminated; a coil; and a pair of external terminals. The element body has a rectangular parallelepiped shape. The element body includes a pair of main surfaces opposing each other in a first direction, a pair of end surfaces opposing each other in a second direction, and a pair of side surfaces opposing each other in a third direction. The pair of external terminals are separated from each other in the second direction. The pair of external terminals are embedded in the element body apart from the pair of end surfaces and the pair of side surfaces. Each of the pair of external terminals includes an exposed surface exposed from one of the main surfaces and an inner surface disposed in the element body. The inner surface includes a depression or a protrusion.
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公开(公告)号：US20210280362A1
公开(公告)日：2021-09-09
申请号：US17191017
申请日：2021-03-03
Applicant: TDK CORPORATION
Inventor： Yuto SHIGA , Hajime KATO , Junichiro URABE , Kazuya TOBITA , Youichi KAZUTA , Noriaki HAMACHI , Toshinori MATSUURA , Yuichi TAKUBO
Abstract: A multilayer coil component includes an element body, a coil disposed in the element body, and a terminal electrode disposed on the element body. The element body has a first side face and a second side face, a first end face and a second end face, and a first main face and a second main face. The terminal electrode includes a first electrode portion and a second electrode portion. The first electrode portion has a first exposed face exposed on the first main face. The second electrode portion has a second exposed face exposed on the first end face. The first exposed face and the second exposed face are adjacent to each other interposing a ridge portion. The first exposed face is separated from an outer edge of the first main face. The second exposed face is separated from an outer edge of the first end face.
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公开(公告)号：US20210272743A1
公开(公告)日：2021-09-02
申请号：US17177421
申请日：2021-02-17
Applicant: TDK CORPORATION
Inventor： Hajime KATO , Junichiro URABE , Yuto SHIGA , Kazuya TOBITA , Youichi KAZUTA , Noriaki HAMACHI , Toshinori MATSUURA , Yuichi TAKUBO , Munehiro TAKAKU
Abstract: A multilayer coil component includes an element body, a coil, and a terminal electrode. The element body includes a first main face, second main face, first end face, second end face, first side face and second side face. The terminal electrode is connected to the coil. The terminal electrode includes a main-face electrode portion provided on the first main face. The coil includes a plurality of coil conductors. The plurality of coil conductors includes a first coil conductor disposed closest to the first main face to oppose to the main-face electrode portion and a second coil conductor disposed closer to the second main face than the first coil conductor. The first coil conductor has a width narrower than a width of the second coil conductor. The first coil conductor has an aspect ratio higher than an aspect ratio of the second coil conductor.
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Patent Agency Ranking
公开(公告)号：US20180277749A1
公开(公告)日：2018-09-27
申请号：US15764848
申请日：2016-06-02
Applicant: TDK CORPORATION
Inventor： Junichiro URABE , Tetsuya SHIBATA , Atsushi SHIMURA , Takekazu YAMANE , Tsuyoshi SUZUKI
CPC classification number: H01L43/08 , H01F10/325 , H01F10/3254 , H01F10/329 , H01F10/3295 , H01L27/22 , H01L43/02 , H03H2/00 , H03H11/04
Abstract: A magnetoresistive effect device including a magnetoresistive effect element with which a high-frequency filter can be realized is provided. Magnetoresistive effect device includes: at least one magnetoresistive effect element including a magnetization fixed layer, spacer layer, and magnetization free layer in which magnetization direction is changeable; first and second port; signal line; and direct-current input terminal. First and second ports are connected to each other via signal line. Magnetoresistive effect element is connected to signal line and is to be connected to ground in parallel to second port. Direct-current input terminal is connected to signal line. A closed circuit including magnetoresistive effect element, signal line, ground, and direct-current input terminal is to be formed.
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公开(公告)号：US20170345449A1
公开(公告)日：2017-11-30
申请号：US15600066
申请日：2017-05-19
Applicant: TDK CORPORATION
Inventor： Tetsuya SHIBATA , Junichiro URABE , Takekazu YAMANE , Tsuyoshi SUZUKI
IPC: G11B5/39
CPC classification number: H03H2/00 , G01R33/00 , G01R33/093 , G01R33/1284 , G11B5/3945 , H01L43/00
Abstract: A magnetoresistive effect device includes a magnetoresistive effect element first and second ports, a signal line, an inductor, and a direct current input terminal. The first port, the magnetoresistive effect element, and the second port are connected in series in this order via the signal line. The inductor is connected to one of the signal line between the magnetoresistive effect element and the first port and the signal line between the magnetoresistive effect element and the second port and is capable of being connected to ground. The direct-current input terminal is connected to the other of the above signal lines. A closed circuit including the magnetoresistive effect element, the signal line, the inductor, the ground, and direct-current input terminal is capable of being formed. The magnetoresistive effect element is arranged so that direct current flows in a direction from a magnetization fixed layer to a magnetization free layer.
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公开(公告)号：US20160277000A1
公开(公告)日：2016-09-22
申请号：US15066350
申请日：2016-03-10
Applicant: TDK CORPORATION
Inventor： Tetsuya SHIBATA , Junichiro URABE , Atsushi SHIMURA , Takekazu YAMANE
CPC classification number: H03H1/0007 , H01L43/00 , H01L43/08 , H03H2/00 , H03H2001/0057 , H03H2001/0085
Abstract: A magnetoresistive effect device includes a magnetoresistive effect element including a magnetization fixed layer, a spacer layer, and a magnetization free layer; a first port; a second port; a signal line; an impedance element; and a direct-current input terminal. The first port, the magnetoresistive effect element, and the second port are connected in series in this order via the signal line. The impedance element is connected to ground and to the signal line between the magnetoresistive effect element and the first port or the second port. The direct-current input terminal is connected to the signal line at the opposite side to the impedance element with the magnetoresistive effect element in between the direct-current input terminal and the impedance element. A closed circuit including the magnetoresistive effect element, the signal line, the impedance element, the ground, and the direct-current input terminal is to be formed.
Abstract translation: 磁阻效应器件包括具有磁化固定层，间隔层和无磁化层的磁阻效应元件; 第一个港口 第二个港口 信号线 阻抗元件; 和直流输入端子。 第一端口，磁阻效应元件和第二端口通过信号线依次串联连接。 阻抗元件连接到地和磁阻效应元件与第一端口或第二端口之间的信号线。 直流输入端子与阻抗元件相反侧的信号线连接到直流输入端子和阻抗元件之间的磁阻效应元件。 将形成包括磁阻效应元件，信号线，阻抗元件，接地和直流输入端子的闭合电路。
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公开(公告)号：US20240128018A1
公开(公告)日：2024-04-18
申请号：US18484680
申请日：2023-10-11
Applicant: TDK CORPORATION
Inventor： Shigeki YANAGIDA , Masashi GOTOH , Shintarou KOIKE , Junichiro URABE
IPC: H01F27/32
CPC classification number: H01F27/327
Abstract: A high-frequency coil component includes a sealing portion containing a resin and a plurality of hollow particles, and a coil portion composed of a wound conductive wire. The coil portion is sealed in the sealing portion. The resin includes a low-dielectric resin having a relative permittivity εr1 of 2.00 or more and less than 3.00 at 23±2° C. A mass of the resin is represented by Mr. A total mass of the plurality of hollow particles is represented by Mp. Mr/(Mr+Mp) is 25% or more and 85% or less.
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公开(公告)号：US20230290561A1
公开(公告)日：2023-09-14
申请号：US18087138
申请日：2022-12-22
Applicant: TDK CORPORATION
Inventor： Xuran GUO , Kazuya TOBITA , Youichi KAZUTA , Yuichi TAKUBO , Yuto SHIGA , So KOBAYASHI , Toshinori MATSUURA , Noriaki HAMACHI , Junichiro URABE , Shunya SUZUKI
CPC classification number: H01F27/292 , H01F27/2804 , H01F2027/2809
Abstract: A multilayer coil component includes an element body including a main surface, first and second external electrodes disposed on the main surface, a coil disposed in the element body, a first connection conductor connecting the first external electrode and the coil, and a second connection conductor connecting the second external electrode and the coil. The second connection conductor includes a pad conductor and a through-hole conductor. The pad conductor and through-hole conductor are separated from the coil. The through-hole conductor includes a connection end connected to the pad conductor. The pad conductor includes a first portion overlapping the entire connection end included in the through-hole conductor and a second portion continuous with the first portion. The second portion is separated from the coil more than the first portion.
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