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公开(公告)号：US12009135B2
公开(公告)日：2024-06-11
申请号：US17186425
申请日：2021-02-26
申请人： TDK CORPORATION
发明人： Syun Ashizawa , Takahiro Banzai , Riku Umeki , Satoshi Sugimoto , Hitoshi Sasaki
CPC分类号： H01F27/24 , H01F3/14 , H01F17/04 , H01F27/263 , H01F27/2852 , H01F27/29 , H01F41/04
摘要： A coil device includes a main core and a sub core. The main core includes a middle leg for winding a coil body and an outer leg connected with the middle leg via a base portion. The sub core is disposed to face the base portion across the middle leg. A gap between the middle leg and the sub core is wider than that between the outer leg and the sub core.
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公开(公告)号：US11456113B2
公开(公告)日：2022-09-27
申请号：US16379033
申请日：2019-04-09
申请人： TDK CORPORATION
发明人： Tasuku Mikogami , Shuhei Someya , Syun Ashizawa , Setu Tsuchida
摘要： 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：USD831570S1
公开(公告)日：2018-10-23
申请号：US29614451
申请日：2017-08-18
申请人： TDK CORPORATION
设计人： Nobuo Takagi , Toshio Tomonari , Setu Tsuchida , Syun Ashizawa
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公开(公告)号：US20170229228A1
公开(公告)日：2017-08-10
申请号：US15426325
申请日：2017-02-07
申请人： TDK Corporation
发明人： Yoshihiro KAWASAKI , Syun Ashizawa , Hirohumi Asou , Nobuo Takagi
IPC分类号： H01F27/255 , H01F27/29 , H01F27/28
CPC分类号： H01F27/255 , H01F3/10 , H01F17/045 , H01F27/2823 , H01F27/2828 , H01F27/29 , H01F27/292
摘要： Disclosed herein is a coil component that includes a drum core having a winding core and first and second flange portions provided at opposite ends of the winding core; a wire wound around the winding core; terminal electrodes provided in the first and second flange portions, the terminal electrodes being connected to ends of the wire; and a magnetic top plate made of magnetic-powder containing resin in which magnetic powder is mixed in binder resin, the magnetic top plate being fixed to the first and second flange portions. The magnetic top plate has a lower surface facing the first and second flange portions and an upper surface located opposite to the lower surface. The density of the binder resin is higher in a surface layer part on a side of the upper surface than in a surface layer part on a side of the lower surface.
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公开(公告)号：US11355277B2
公开(公告)日：2022-06-07
申请号：US16382950
申请日：2019-04-12
申请人： TDK CORPORATION
发明人： Syun Ashizawa , Toshio Tomonari , Masato Otsuka
摘要： Disclosed herein is a coil component that includes a magnetic core having first and second through holes extending in a first direction and arranged in a second direction perpendicular to the first direction, and a conductive plate including first and second body parts inserted respectively through the first and second through holes. The magnetic core includes a middle leg part positioned between the first and second through holes, a first outer leg part positioned on an opposite side to the middle leg part across the first through hole, and a second outer leg part positioned on an opposite side to the middle leg part across the second through hole. Area of each of the first and second outer leg parts defined by the first and second directions is larger than that of the middle leg 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
申请人： TDK CORPORATION
发明人： Tasuku Mikogami , Shuhei Someya , Syun Ashizawa , Setu Tsuchida
摘要： 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
申请人： TDK Corporation
发明人： Tasuku Mikogami , Nobuo Takagi , Kouyu Ohi , Syun Ashizawa , Setu Tsuchida
摘要： 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：US10014101B2
公开(公告)日：2018-07-03
申请号：US15426325
申请日：2017-02-07
申请人： TDK Corporation
发明人： Yoshihiro Kawasaki , Syun Ashizawa , Hirohumi Asou , Nobuo Takagi
CPC分类号： H01F27/255 , H01F3/10 , H01F17/045 , H01F27/2823 , H01F27/2828 , H01F27/29 , H01F27/292
摘要： Disclosed herein is a coil component that includes a drum core having a winding core and first and second flange portions provided at opposite ends of the winding core; a wire wound around the winding core; terminal electrodes provided in the first and second flange portions, the terminal electrodes being connected to ends of the wire; and a magnetic top plate made of magnetic-powder containing resin in which magnetic powder is mixed in binder resin, the magnetic top plate being fixed to the first and second flange portions. The magnetic top plate has a lower surface facing the first and second flange portions and an upper surface located opposite to the lower surface. The density of the binder resin is higher in a surface layer part on a side of the upper surface than in a surface layer part on a side of the lower surface.
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公开(公告)号：USD1040763S1
公开(公告)日：2024-09-03
申请号：US29909304
申请日：2023-08-03
申请人： TDK Corporation
设计人： Nobuo Takagi , Toshio Tomonari , Setu Tsuchida , Syun Ashizawa
摘要： FIG. 1 is a front view of a first embodiment of a coil component showing our new design;
FIG. 2 is a back view of the design shown in FIG. 1;
FIG. 3 is a left side view of the design shown in FIG. 1;
FIG. 4 is a top view of the design shown in FIG. 1;
FIG. 5 is a bottom view of the design shown in FIG. 1;
FIG. 6 is a perspective view of the design shown in FIG. 1;
FIG. 7 is a front view of a second embodiment of a coil component showing our new design;
FIG. 8 is a back view of the design shown in FIG. 7;
FIG. 9 is a left side view of the design shown in FIG. 7;
FIG. 10 is a top view of the design shown in FIG. 7;
FIG. 11 is a bottom view of the design shown in FIG. 7; and,
FIG. 12 is a perspective view of the design shown in FIG. 7.
A right side view of the design according to the first embodiment is symmetrical to FIG. 3, and is not illustrated.
A right side view of the design according to the second embodiment is symmetrical to FIG. 9, and is not illustrated.-
公开(公告)号：US11605494B2
公开(公告)日：2023-03-14
申请号：US17072679
申请日：2020-10-16
申请人： TDK Corporation
发明人： Syun Ashizawa , Masato Otsuka , Hanako Yoshino , Toshio Tomonari , Kohei Wada
摘要： 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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