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公开(公告)号：US20210280359A1
公开(公告)日：2021-09-09
申请号：US17190857
申请日：2021-03-03
Applicant: TDK Corporation
Inventor： Hanako YOSHINO , Keigo HIGASHIDA
Abstract: Disclosed herein is a coil component that includes a winding core part and a wire wound around the winding core part. The winding core part includes a first winding area positioned on a first flange part side, a second winding area positioned on a second flange part side, and a third winding area positioned between the first and second winding areas. The wire includes a first section wound in a plurality of turns around the first winding area, a second section wound in a plurality of turns around the second winding area, and a third section wound in less than one turn around the third winding area. A shift amount of a winding position of the wire in an axial direction per turn is larger in the third section than in each of the first and second sections.
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公开(公告)号：US20240212919A1
公开(公告)日：2024-06-27
申请号：US18542964
申请日：2023-12-18
Applicant: TDK CORPORATION
Inventor： Taichi WATANABE , Tatsuya SATO , Yugo ASAI , Daisuke URABE , Keigo HIGASHIDA , Hanako YOSHINO , Takashi ARASAWA
CPC classification number: H01F27/2828 , H01F27/29 , H01F27/306
Abstract: A coil device includes a coil, a core, and a terminal fitting. The coil includes a winding portion and a lead portion led out from the winding portion. The core includes a winding core portion provided with the winding portion and a flange portion formed at an end in a first direction parallel to an axis of the winding core portion. The terminal fitting is provided with an engagement portion for engaging with the flange portion. The flange portion includes a first side surface located on one side in a second direction parallel to a mounting surface of the flange portion and a second side surface located on the other side in the second direction. The engagement portion is disposed from the first side surface to the second side surface and connected to the lead portion.
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公开(公告)号：US20200243251A1
公开(公告)日：2020-07-30
申请号：US16751725
申请日：2020-01-24
Applicant: TDK CORPORATION
Inventor： Hanako YOSHINO , Hiroshi SUZUKI , Daisuke URABE , Keigo HIGASHIDA , Tomokazu TSUCHIYA
IPC: H01F27/28 , H01F27/29 , H01F27/24 , H01F41/069
Abstract: Disclosed herein is a coil component that includes a winding core part, and first and second wires wound around the winding core part. The first and second wires constitute at least three winding layers on the winding core part. A i-th (i is an integer equal to or larger than 1) turn, a (i+1) turn, and a (i+2) turn of each of the first and second wires are positioned in mutually different winding layers.
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公开(公告)号：US20220384093A1
公开(公告)日：2022-12-01
申请号：US17828335
申请日：2022-05-31
Applicant: TDK Corporation
Inventor： Hanako YOSHINO , Keigo HIGASHIDA , Daisuke URABE , Takashi ARASAWA , Yugo ASAI
Abstract: Disclosed herein is a coil component that includes a drum core; a terminal fitting fixed respectively to the flange part of the drum core; and a wire wound around the winding core part of the drum core. The terminal fitting has a wire connecting part to which the wire is connected and a mounting part having springiness with respect to the drum core. The distance between the flange part and the mounting part is larger than the distance between the flange part and the wire connecting part.
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公开(公告)号：US20220384089A1
公开(公告)日：2022-12-01
申请号：US17731292
申请日：2022-04-28
Applicant: TDK Corporation
Inventor： Hanako YOSHINO , Keigo HIGASHIDA , Taichi WATANABE
Abstract: Disclosed herein is a circuit substrate that includes a coil component mounted on the substrate having first and second land patterns and first and second dummy land patterns. The coil component includes a first signal terminal and a first dummy terminal which are provided on the first flange part, a second signal terminal and a second dummy terminal which are provided on the second flange part, and a wire wound around the winding core part and whose one end and other end are connected respectively to the first signal terminal and the second signal terminal. The coil component is mounted on the substrate such that the first and second signal terminals are connected respectively to the first and second land patterns and that the first and second dummy patterns are connected respectively to the first and second dummy land patterns.
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Patent Agency Ranking
公开(公告)号：US20190131056A1
公开(公告)日：2019-05-02
申请号：US16170349
申请日：2018-10-25
Applicant: TDK Corporation
Inventor： Syun ASHIZAWA , Masato OTSUKA , Hanako YOSHINO , Toshio TOMONARI , Kohei WADA
IPC: H01F27/28
Abstract: Disclosed herein is a coil component that includes an insulating substrate, a first coil part formed on the first surface of the insulating substrate, and a second coil part formed on the second surface of the insulating substrate. At least an innermost turn of the first coil part is radially separated by spiral-shaped slits into three or more conductor parts. At least an innermost turn of the second coil part is radially separated by spiral-shaped slits into three or more conductor parts. Inner peripheral ends of respective innermost to outermost conductor parts of the three or more conductor parts of the first coil part are connected to inner peripheral ends of the respective outermost to innermost conductor parts of the three or more conductor parts of the second coil part.
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公开(公告)号：US20220059281A1
公开(公告)日：2022-02-24
申请号：US17399855
申请日：2021-08-11
Applicant: TDK CORPORATION
Inventor： Terumasa TOYODA , Hiroshi SUZUKI , Toru TONOGAI , Keigo HIGASHIDA , Hanako YOSHINO
Abstract: Disclosed herein is a coil component that includes a plate-like base member, a magnetic core mounted on the base member, a wire wound around the magnetic core such that an axis direction thereof is substantially parallel to the base member, and a terminal electrode fixed to the base member and connected to an end portion of the wire. The base member is made of a material having a permeability lower than that of the magnetic core.
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公开(公告)号：US20210257143A1
公开(公告)日：2021-08-19
申请号：US17177404
申请日：2021-02-17
Applicant: TDK Corporation
Inventor： Hanako YOSHINO , Keigo HIGASHIDA
Abstract: Disclosed herein is a circuit board that includes a substrate and a coil component mounted on the substrate. The coil component includes a core and a wire wound around the core. The substrate includes a dielectric and a capacitive electrode capacitively coupled to the wire through the dielectric and supplied with a ground potential.
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公开(公告)号：US20210257142A1
公开(公告)日：2021-08-19
申请号：US17177393
申请日：2021-02-17
Applicant: TDK Corporation
Inventor： Hanako YOSHINO , Keigo HIGASHIDA
Abstract: Disclosed herein is a coil component that includes a core having a winding core part, a first flange part positioned at one axial end of the winding core part, and a second flange part positioned at other axial end of the winding core part; a wire wound around the winding core part; a first conductive member overlapping the wire through a dielectric; a first terminal electrode provided on the first flange part and connected to one end of the wire; a second terminal electrode provided on the second flange part and connected to other end of the wire; and a third terminal electrode provided on the first flange part and connected to the first conductive member.
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公开(公告)号：US20200243257A1
公开(公告)日：2020-07-30
申请号：US16751579
申请日：2020-01-24
Applicant: TDK CORPORATION
Inventor： Hanako YOSHINO , Hiroshi SUZUKI , Daisuke URABE , Keigo HIGASHIDA , Tomokazu TSUCHIYA
Abstract: Disclosed herein is a coil component that includes a winding core part and a wire wound around the winding core part. An i-th turn (i is an integer equal to or larger than 1) to a j-th turn (j is an integer equal to or larger than (i+2)) of the wire are wound in this order around the winding core part in an aligned state. A (j-th+1) turn of the wire is wound around a valley line formed by the i-th turn and a (i-th+1) turn. A (j-th+2) turn of the wire is wound adjacent to the j-th turn around the winding core part.
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