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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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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：US20240266108A1
公开(公告)日：2024-08-08
申请号：US18425517
申请日：2024-01-29
Applicant: TDK Corporation
Inventor： Youichi KAZUTA , Kazuya TOBITA , Yuto SHIGA , Yuichi TAKUBO , Xuran GUO , So KOBAYASHI , Hiroto KOMATSU , Toru YAGINUMA
CPC classification number: H01F41/041 , H01F17/0013 , H01F17/04 , H01F27/292 , H01F2017/048
Abstract: An electronic component includes an element body including a first principal surface and a second principal surface opposing each other, and first and second external electrodes disposed on the first principal surface and separated from each other. The element body includes a first region including the first principal surface and a second region located between the first region and the second principal surface. The first region includes a portion located between the first and second external electrodes. The portion included in the first region is in contact with the first and second external electrodes. When viewed in a direction in which the first principal surface and the second principal surface oppose each other, the portion included in the first region covers an end of each of the first and second external electrodes. The first region has hardness greater than that of the second region.
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Patent Agency Ranking
公开(公告)号：US20240120140A1
公开(公告)日：2024-04-11
申请号：US18335607
申请日：2023-06-15
Applicant: TDK CORPORATION
Inventor： Noriaki HAMACHI , Toshinori MATSUURA , Junichiro URABE , Kota OIKAWA , Yuto SHIGA , Youichi KAZUTA , Yuichi TAKUBO , Shunya SUZUKI , Xuran GUO , So KOBAYASHI
CPC classification number: H01F17/0013 , H01F27/292 , H01F2017/002
Abstract: A plurality of through-hole conductors include a first through-hole conductor and a second through-hole conductor between coil conductors adjacent each other. Each of the first through-hole conductor and the second through-hole conductor includes a first end and a second end. The first end included in the second through-hole conductor is coupled to the second end included in the first through-hole conductor, and has a width larger than a width of the second end included in the first through-hole conductor. The first end included in the first through-hole conductor has a width larger than the width of the second end included in the first through-hole conductor. The second end included in the second through-hole conductor has a width smaller than the width of the first end included in the second through-hole conductor.
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公开(公告)号：US20230326661A1
公开(公告)日：2023-10-12
申请号：US18187785
申请日：2023-03-22
Applicant: TDK CORPORATION
Inventor： Noriaki HAMACHI , Toshinori MATSUURA , Junichiro URABE , Kazuya TOBITA , Yuto SHIGA , Youichi KAZUTA , Yuichi TAKUBO , Shunya SUZUKI , Xuran GUO , So KOBAYASHI
IPC: H01F27/28
CPC classification number: H01F27/2804
Abstract: The mainline pattern and the pair of bypass patterns in the multilayer inductor can be regarded as three inductors connected in parallel in the element body. That is, in the multilayer inductor, paralleling of the inductance is realized in the element body by the mainline pattern and the pair of bypass patterns. Therefore, the inductance value of the multilayer inductor as a whole can be reduced.
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公开(公告)号：US20230207186A1
公开(公告)日：2023-06-29
申请号：US18085990
申请日：2022-12-21
Applicant: TDK CORPORATION
Inventor： Yuto SHIGA , Kazuya TOBITA , Youichi KAZUTA , Yuichi TAKUBO , So KOBAYASHI , Xuran GUO , Shunya SUZUKI
CPC classification number: H01F27/292 , H01F17/0013
Abstract: A plurality of electrode conductors included in a first external electrode and a second external electrode of a multilayer coil component includes a first part in a second direction and a second part in a third direction. A first electrode conductor and a third electrode conductor differ in at least any one dimension of four dimensions including a width of the first part, a length of the first part, a width of the second part, and a length of the second part. A second electrode conductor and a fourth electrode conductor differ in at least any one dimension of the four dimensions. The first electrode conductor and the second electrode conductor differ in at least any one dimension of the four dimensions. The third electrode conductor and the fourth electrode conductor differ in at least any one dimension of the four dimensions.
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公开(公告)号：US20230130960A1
公开(公告)日：2023-04-27
申请号：US17969223
申请日：2022-10-19
Applicant: TDK CORPORATION
Inventor： Yuto SHIGA , Kazuya TOBITA , Youichi KAZUTA , Yuichi TAKUBO , Toshinori MATSUURA , Junichiro URABE , Noriaki HAMACHI
Abstract: A multilayer coil component includes an element body including a main surface, a coil disposed in the element body, and an external electrode electrically connected to the coil. The external electrode includes an underlying metal layer disposed on the element body and a plated layer in contact with a surface of the underlying metal layer. The underlying metal layer includes a main surface electrode portion exposed from the main surface. At least one recess that opens to at least a surface of the main surface electrode portion is formed in the main surface electrode portion.
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公开(公告)号：US20220319763A1
公开(公告)日：2022-10-06
申请号：US17706146
申请日：2022-03-28
Applicant: TDK CORPORATION
Inventor： Kazuya TOBITA , Youichi KAZUTA , 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 connection conductor 6, and a second connection conductor 7. The coil 5 includes a first coil portion 8 that has one end of the coil 5 and is disposed on a side of a main surface 2c and a second coil portion 9 that has the other end of the coil 5 and is disposed on a side of the main surface 2d. A distance L2 between the first connection conductor 6 and the second coil portion 9 is larger than a distance L1 between the first connection conductor 6 and the first coil portion 8.
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