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公开(公告)号：US09905355B2
公开(公告)日：2018-02-27
申请号：US14789540
申请日：2015-07-01
Applicant: TDK CORPORATION
Inventor： Nobuo Takagi , Tasuku Mikogami , Setu Tsuchida , Hiroyuki Abe
CPC classification number: H01F27/306 , H01F27/266 , H01F2019/085
Abstract: A coil component includes a first core, a second core, a lead wire, an outside mark, and an inside mark. The first core includes a winding portion and a pair of core ends. The second core connects a pair of the core ends and includes an inside surface and an outside surface. The lead wire is wound around the winding portion. The outside mark is formed on the outside surface of the second core and designed to change its arrangement at the time of rotating the second core by 90 degrees in a rotational direction whose central axis is along a normal direction of the outside surface. The inside mark with undulation is formed on the inside surface of the second core and designed to change its arrangement at the time of rotating the second core by 90 degrees in the rotational direction.
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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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公开(公告)号：USD798814S1
公开(公告)日：2017-10-03
申请号：US29528830
申请日：2015-06-01
Applicant: TDK CORPORATION
Designer： Nobuo Takagi , Toshio Tomonari , Setu Tsuchida , Syun Ashizawa
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公开(公告)号：US20160155561A1
公开(公告)日：2016-06-02
申请号：US14947953
申请日：2015-11-20
Applicant: TDK CORPORATION
Inventor： Nobuo Takagi , Toshio Tomonari , Setu Tsuchida , Syun Ashizawa
IPC: H01F27/28
CPC classification number: H01F27/2823 , H01F17/045
Abstract: A pulse transformer includes a winding drum and a coil portion in which wires are wound around the winding core. The coil portion includes a first general winding area, a second general winding area, and a low density winding area. In the first general winding area, the wires are mutually closely wound around the winding core. In the second general winding area, the wires continuing from the wires of the first general winding area are mutually closely wound around the winding core. The low density winding area is formed along a winding axis of the winding core between the first general winding area and the second general winding area and has a low winding density of the wires along the winding axis.
Abstract translation: 脉冲变压器包括卷绕鼓和缠绕在绕组芯上的线圈部分。 线圈部分包括第一通用绕组区域，第二通用绕组区域和低密度绕组区域。 在第一个通用绕组区域中，电线相互紧密缠绕在绕组芯上。 在第二通用绕组区域中，从第一通用绕组区域的电线延续的电线相互紧密缠绕在绕组芯上。 所述低密度卷绕区域沿着所述卷芯的卷绕轴线在所述第一一般卷绕区域和所述第二一般卷绕区域之间形成，并且所述布线沿着卷绕轴线具有低的卷绕密度。
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公开(公告)号：US11101064B2
公开(公告)日：2021-08-24
申请号：US16725159
申请日：2019-12-23
Applicant: TDK CORPORATION
Inventor： Nobuo Takagi , Setu Tsuchida , Tasuku Mikogami
Abstract: A pulse transformer includes a drum core having a winding core, a first flange provided at one end of the winding core in a first direction, and a second flange provided at the other end of the winding core in the first direction. The pulse transformer also includes a plurality of the first electrodes provided in the first flange and arranged in a second direction substantially perpendicular to the first direction, a plurality of second electrodes provided in the second flange and arranged in the second direction, and a plurality of wires wound around the winding core. A length of the pulse transformer in the first and second directions are substantially equal, and a length of the pulse transformer in a third direction substantially perpendicular to the first and second directions is smaller than the length of the pulse transformer in the first and second directions.
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Patent Agency Ranking
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：US20190318866A1
公开(公告)日：2019-10-17
申请号：US16379033
申请日：2019-04-09
Applicant: TDK CORPORATION
Inventor： Tasuku Mikogami , Shuhei Someya , Syun Ashizawa , Setu Tsuchida
Abstract: Disclosed herein is a coil component that includes: a core including a winding core part extending in a first direction and a flange part provided at one end of the winding core part in the first direction, the flange part having a first surface substantially parallel with the first direction; a plate-like member fixed to the first surface of flange part; and a wire wound around the winding core part. The first surface of flange part has a cut part greater in size than a diameter of the wire.
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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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公开(公告)号：US10157707B2
公开(公告)日：2018-12-18
申请号：US15870427
申请日：2018-01-12
Applicant: TDK CORPORATION
Inventor： Nobuo Takagi , Tasuku Mikogami , Setu Tsuchida , Hiroyuki Abe
Abstract: A coil component includes a first core, a second core, a lead wire, an outside mark, and an inside mark. The first core includes a winding portion and a pair of core ends. The second core connects a pair of the core ends and includes an inside surface and an outside surface. The lead wire is wound around the winding portion. The outside mark is formed on the outside surface of the second core and designed to change its arrangement at the time of rotating the second core by 90 degrees in a rotational direction whose central axis is along a normal direction of the outside surface. The inside mark with undulation is formed on the inside surface of the second core and designed to change its arrangement at the time of rotating the second core by 90 degrees in the rotational direction.
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