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公开(公告)号：US11521787B2
公开(公告)日：2022-12-06
申请号：US16444806
申请日：2019-06-18
Applicant: TDK CORPORATION
Inventor： Shuhei Someya , Kouyu Ohi , Tasuku Mikogami
IPC: H01F27/29 , H01F27/28 , H01F41/064 , H01F27/24
Abstract: Disclosed herein is a coil component that includes: a first magnetic core extending in the first direction and around which the wires are wound; a second magnetic core covering the first magnetic core from one side in a third direction; first and second terminal electrodes connected respectively to one ends of the first and second wires; and third and fourth terminal electrodes connected respectively to other ends of the first and second wires. The first and second electrodes are arranged in the first direction along the first surface of the first magnetic core, and the third and fourth terminal electrodes are arranged in the first direction along the second surface of the first magnetic core.
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公开(公告)号：US10770219B2
公开(公告)日：2020-09-08
申请号：US15848618
申请日：2017-12-20
Applicant: TDK Corporation
Inventor： Yoshihiro Kawasaki , Kouyu Ohi , Hirohumi Asou , Syun Ashizawa
Abstract: Disclosed herein is a coil component that includes a drum core having a winding core part and first and second flange parts provided on both sides of the winding core part; a wire wound around the winding core part; a plurality of terminal electrodes connected with end portions of the wire, each of the terminal electrodes being provided on an associated one of the first and second flange parts; and a top plate fixed to the first and second flange parts. The top plate includes a magnetic layer comprising magnetic powder and binder resin, and a resin layer having a smaller content of the magnetic powder than that of the magnetic layer. The resin layer is positioned between the first and second flange parts and the magnetic layer.
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公开(公告)号：US20190189331A1
公开(公告)日：2019-06-20
申请号：US15848618
申请日：2017-12-20
Applicant: TDK Corporation
Inventor： Yoshihiro KAWASAKI , Kouyu Ohi , Hirohumi Asou , Syun Ashizawa
IPC: H01F27/255 , H01F27/28 , H01F27/29
Abstract: Disclosed herein is a coil component that includes a drum core having a winding core part and first and second flange parts provided on both sides of the winding core part; a wire wound around the winding core part; a plurality of terminal electrodes connected with end portions of the wire, each of the terminal electrodes being provided on an associated one of the first and second flange parts; and a top plate fixed to the first and second flange parts. The top plate includes a magnetic layer comprising magnetic powder and binder resin, and a resin layer having a smaller content of the magnetic powder than that of the magnetic layer. The resin layer is positioned between the first and second flange parts and the magnetic layer.
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公开(公告)号：US10256020B2
公开(公告)日：2019-04-09
申请号：US15282815
申请日：2016-09-30
Applicant: TDK Corporation
Inventor： Nobuo Takagi , Kouyu Ohi , Tasuku Mikogami , Setu Tsuchida
Abstract: The coil device comprises the magnetic core comprising the axial part and the magnetic core end part connecting to the axial part, the coil part formed by winding the wire around the axial part, and the electrode part provided at the magnetic core end part and made of good conductor. Said electrode part comprises the fixing surface fixed with a wire end part of said wire, and the fixing surface is provided on a side surface which does not intersect with a center axis of said coil part at said magnetic core end part. Said fixing surface is inclined to a direction away from said center axis with respect to a direction towards said magnetic core end part from said axial part.
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公开(公告)号：US09865386B2
公开(公告)日：2018-01-09
申请号：US15395099
申请日：2016-12-30
Applicant: TDK Corporation
Inventor： Nobuo Takagi , Kouyu Ohi , Tasuku Mikogami , Setu Tsuchida
CPC classification number: H01F27/06 , H01F3/10 , H01F27/29 , H01F27/292 , H01F2027/065
Abstract: Disclosed herein is a coil component that includes a drum-shaped core having a first flange part provided at one end of a winding core part, first to fourth terminal metal fittings formed on the first flange part so as to be arranged in this order in a second direction, and first to fourth wires wound around the winding core part. One ends of the first to fourth wires are connected to different ones of the first to fourth terminal metal fittings. A distance between the first and second terminal metal fittings is larger than the distance between the third and fourth terminal metal fittings. An amount of an adhesive used to bond each of the third and fourth terminal metal fittings is greater than an amount of an adhesive used to bond each of the first and second metal fittings.
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Patent Agency Ranking
公开(公告)号：US20240321508A1
公开(公告)日：2024-09-26
申请号：US18418986
申请日：2024-01-22
Applicant: TDK CORPORATION
Inventor： Tomoya TSUBAI , Takashi Arasawa , Kouyu Ohi
CPC classification number: H01F27/292 , H01F27/266 , H01F27/306
Abstract: A coil device comprises a first wire connected to a first terminal; a second wire connected to a second terminal; a terminal block anchoring the first terminal and the second terminal; a bobbin including a first cylindrical portion wound around with the first wire and extending along a first axis, a second cylindrical portion wound around with the second wire and extending along the first axis, and a flange portion connecting the first cylindrical portion and the second cylindrical portion; and a core accommodated in the bobbin. The terminal block at least partly covers the flange portion of the bobbin.
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公开(公告)号：US11610726B2
公开(公告)日：2023-03-21
申请号：US16577344
申请日：2019-09-20
Applicant: TDK CORPORATION
Inventor： Tasuku Mikogami , Kouyu Ohi , Yusuke Kimoto
Abstract: A coil device having high bonding strength and bonding reliability has a core member including a winding core and a flange, wires wound around the winding core and one end being positioned at the flange, and terminal electrodes provided to the flange. Each of the terminal electrodes has a wire connecting part where one ends of the wires are connected, and a mounting part continuously formed with the wire connecting part at the side close to the winding core with respect to the wire connecting part along the axis direction of the winding core. The wire connecting part is provided at a position lower than the mounting part along the height direction of the flange.
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公开(公告)号：US10964465B2
公开(公告)日：2021-03-30
申请号：US16283641
申请日：2019-02-22
Applicant: TDK Corporation
Inventor： Nobuo Takagi , Kouyu Ohi , Tasuku Mikogami , Setu Tsuchida
Abstract: The coil device comprises the magnetic core comprising the axial part and the magnetic core end part connecting to the axial part, the coil part formed by winding the wire around the axial part, and the electrode part provided at the magnetic core end part and made of good conductor. Said electrode part comprises the fixing surface fixed with a wire end part of said wire, and the fixing surface is provided on a side surface which does not intersect with a center axis of said coil part at said magnetic core end part. Said fixing surface is inclined to a direction, away from said center axis with respect to a direction towards said magnetic core end part from said axial part.
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公开(公告)号：US10418174B2
公开(公告)日：2019-09-17
申请号：US15200383
申请日：2016-07-01
Applicant: TDK Corporation
Inventor： Tasuku Mikogami , Nobuo Takagi , Kouyu Ohi , Syun Ashizawa , Setu Tsuchida
Abstract: Disclosed herein is a coil component that includes a drum core including a pair of flange portions and a winding core portion positioned between the flange portions, a plurality of terminal electrodes formed on the flange portions, and a plurality of wires wound around the winding core portion, each end of the wires being electrically connected to an associated one of the terminal electrodes. Each of the flange portions has an inner side surface connected to the winding core portion and an outer side surface opposite to the inner side surface, the outer side surface has a plurality of ridges and at least one groove, and the terminal electrodes are formed on at least the ridges of the outer side surfaces such that the terminal electrodes are isolated from each other by the groove.
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公开(公告)号：US20190189320A1
公开(公告)日：2019-06-20
申请号：US16283641
申请日：2019-02-22
Applicant: TDK Corporation
Inventor： Nobuo TAKAGI , Kouyu Ohi , Tasuku Mikogami , Setu Tsuchida
CPC classification number: H01F5/04 , H01F27/2828 , H01F27/292 , H01F27/306
Abstract: The coil device comprises the magnetic core comprising the axial part and the magnetic core end part connecting to the axial part, the coil part formed by winding the wire around the axial part, and the electrode part provided at the magnetic core end part and made of good conductor. Said electrode part comprises the fixing surface fixed with a wire end part of said wire, and the fixing surface is provided on a side surface which does not intersect with a center axis of said coil part at said magnetic core end part. Said fixing surface is inclined to a direction, away from said center axis with respect to a direction towards said magnetic core end part from said axial part.
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