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公开(公告)号：US20230119231A1
公开(公告)日：2023-04-20
申请号：US17964280
申请日：2022-10-12
Applicant: TDK Corporation
Inventor： Youichi KAZUTA , Junichiro URABE , Toshinori MATSUURA , Noriaki HAMACHI , Yuichi TAKUBO , Yuto SHIGA , Kazuya TOBITA
Abstract: The element body includes a main surface, and a side surface located on imaginary planes orthogonal to the main surface. The external electrode includes first, second and third electrode portions. The first electrode portion is exposed at the main surface. The second electrode portion is continuous with the first electrode portion and exposed at the main surface. The second electrode portion is located to extend from the first electrode portion to the imaginary planes when viewed in a direction orthogonal to the main surface. The third electrode portion is continuous with the first electrode portion and is separated from the second electrode portion in the direction orthogonal to the main surface. The third electrode portion includes outer edges coinciding with the imaginary planes when viewed in the direction orthogonal to the main surface. The element body includes a part between the second electrode portion and the third electrode portion.
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公开(公告)号：US20220216003A1
公开(公告)日：2022-07-07
申请号：US17568754
申请日：2022-01-05
Applicant: TDK CORPORATION
Inventor： Noriaki HAMACHI , Toshinori MATSUURA , Junichiro URABE , Kazuya TOBITA , Yuto SHIGA , Youichi KAZUTA , Yuichi TAKUBO
Abstract: A multilayer inductor includes: an element body formed by stacking a plurality of layers of insulators in a stacking direction; a terminal electrode provided on at least one side surface of the element body; and a linear conductor portion provided in the element body and extending in a first direction, wherein, as viewed from a second direction perpendicular to the first direction, the conductor portion has a first portion in a region overlapping the terminal electrode and a second portion in a region not overlapping the terminal electrode, and wherein a width of the first portion as viewed from the second direction is smaller than a width of the second portion.
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公开(公告)号：US20220189683A1
公开(公告)日：2022-06-16
申请号：US17546851
申请日：2021-12-09
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, a coil, and an external terminal. The element body includes a plurality of insulator layers that is laminated. The coil is disposed in the element body. The external terminal includes a plurality of conductor layers that is laminated. The external terminal is electrically connected to the coil. The element body includes a main face and a first side face adjacent to the main face. The external terminal is embedded in the element body in such a way as to be separated from the first side face and exposed from the main face. The external terminal includes a first separated face that is separated from the first side face as being separated from the main face.
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Patent Agency Ranking
公开(公告)号：US20220139611A1
公开(公告)日：2022-05-05
申请号：US17514072
申请日：2021-10-29
Applicant: TDK CORPORATION
Inventor： Yuichi TAKUBO , Masaki TAKAHASHI , Youichi KAZUTA , Yuto SHIGA , Junichiro URABE , Noriaki HAMACHI , Kazuya TOBITA , Toshinori MATSUURA
IPC: H01F27/29
Abstract: A multilayer coil component 1 includes an element body 2, a coil 10, and a pair of terminal electrodes 3. The element body 2 has a groove portion 20 provided on a main surface 2c. The groove portion 20 is disposed between the pair of terminal electrodes 3 and extends over one side surface 2e and the other side surface 2f. The depth of the groove portion 20 in the direction in which the main surface 2c and a main surface 2d, which are a pair, face each other is smaller than the thickness of each of the pair of terminal electrodes 3 in the facing direction.
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公开(公告)号：US20180315535A1
公开(公告)日：2018-11-01
申请号：US15962286
申请日：2018-04-25
Applicant: TDK CORPORATION
Inventor： Takekazu YAMANE , Junichiro URABE , Tsuyoshi SUZUKI , Atsushi SHIMURA
CPC classification number: H01F10/329 , G11C11/02 , G11C11/15 , G11C11/16 , G11C11/1673 , G11C11/1675 , H01F10/325 , H01F10/3254 , H01F10/3259 , H01P1/218 , H03H2/00 , H03H11/04
Abstract: The magnetoresistance effect device includes: a first port; a second port; a magnetoresistance effect element; a first signal line that is connected to the first port and applies a high frequency magnetic field to the magnetoresistance effect element; a second signal line that connects the second port and the magnetoresistance effect element to each other; and a direct current application terminal capable of being connected to a power supply that applies a direct current or a direct current voltage. The first signal line includes a magnetic field generator, which extends in a first direction, at a position in the lamination direction of the magnetoresistance effect element or an in-plane direction that is orthogonal to the lamination direction, and the magnetic field generator and the magnetoresistance effect element include an overlapping portion as viewed from the lamination direction in which the magnetic field generator is disposed, or the in-plane direction.
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公开(公告)号：US20180159492A1
公开(公告)日：2018-06-07
申请号：US15870243
申请日：2018-01-12
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 high-frequency filter includes at least one magnetoresistive effect element; a first port through which a high-frequency signal is input; a second port through which a high-frequency signal is output; and a signal line.
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公开(公告)号：US20180040666A1
公开(公告)日：2018-02-08
申请号：US15662697
申请日：2017-07-28
Applicant: TDK CORPORATION
Inventor： Tetsuya SHIBATA , Tsuyoshi SUZUKI , Junichiro URABE , Takekazu YAMANE , Atsushi SHIMURA
CPC classification number: H01L27/22 , G11B5/3903 , G11B5/3945 , H01L43/02 , H01L43/08 , H03H1/0007 , H03H2/00 , H03H7/0153
Abstract: A magnetoresistive effect device includes a first magnetoresistive effect element, a second magnetoresistive effect element, a first port, a second port, a signal line, and a direct-current input terminal. The first port, the first magnetoresistive effect element, and the second port are connected in series to each other in this order via the signal line. The second magnetoresistive effect element is connected to the signal line in parallel with the second port. The first magnetoresistive effect element and the second magnetoresistive effect element are formed so that the relationship between the direction of direct current that is input from the direct-current input terminal and that flows through the first magnetoresistive effect element and the order of arrangement of a magnetization fixed layer, a spacer layer, and a magnetization free layer in the first magnetoresistive effect element is opposite to the above relationship in the second magnetoresistive effect element.
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公开(公告)号：US20170244377A1
公开(公告)日：2017-08-24
申请号：US15439640
申请日：2017-02-22
Applicant: TDK CORPORATION
Inventor： Takekazu YAMANE , Tetsuya SHIBATA , Junichiro URABE , Atsushi SHIMURA
Abstract: A magnetoresistive effect device includes at least one magnetoresistive effect element including a magnetization fixed layer, a spacer layer, and a magnetization free layer, a first port, a second port, a first signal line which is connected to the first port and through which high-frequency current corresponding to a high-frequency signal input into the first port flows, a second signal line, and a direct-current input terminal. The magnetoresistive effect element is arranged so that a high-frequency magnetic field occurring from the first signal line is applied to the magnetization free layer. The magnetoresistive effect element is connected to the second port via the second signal line. The direct-current input terminal is connected to the magnetoresistive effect element.
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