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公开(公告)号：US20200343035A1
公开(公告)日：2020-10-29
申请号：US16928407
申请日：2020-07-14
Applicant: TDK Corporation
Inventor： Toshio TOMONARI , Tsutomu KOBAYASHI , Kazunori ARIMITSU
Abstract: Disclosed herein is a common mode filter that comprises a drum core including a winding core portion and a pair of flange portions provided at both ends of the winding core portion, and first and second wires wound around the winding core portion so as to form a pair-wire for each turn. The first and second wires includes one or a plurality of sparsely-wound portions in which the first and second wires are wound with adjacent pair-wires spaced from each other, and one or a plurality of closely-wound portions in which the first and second wires are wound with adjacent pair-wires in close contact with each other.
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公开(公告)号：US20180358174A1
公开(公告)日：2018-12-13
申请号：US16004759
申请日：2018-06-11
Applicant: TDK CORPORATION
Inventor： Toshifumi KOMACHI , Kosuke KUNITSUKA , Toshio TOMONARI
CPC classification number: H01F27/34 , H01F27/06 , H01F27/24 , H01F27/2804 , H01F27/29 , H01F2027/2809
Abstract: Disclosed herein is a coil component that includes first and second coil parts each spirally wound in a plurality of turns in directions opposite to each other. An innermost turn of the first coil part is radially divided into first and second conductor parts by a spiral slit, and at least an innermost turn of the second coil part is radially divided into third and fourth conductor parts by a spiral slit. The first conductor part is positioned radially inward of the second conductor part, and the third conductor part is positioned radially inward of the fourth conductor part. The inner peripheral end of the first conductor part is connected to the inner peripheral end of the fourth conductor part, and the inner peripheral end of the second conductor part is connected to the inner peripheral end of the third conductor part.
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公开(公告)号：US20170338547A1
公开(公告)日：2017-11-23
申请号：US15595555
申请日：2017-05-15
Applicant: TDK Corporation
Inventor： Toshifumi KOMACHI , Toshio TOMONARI , Hirohumi ASOU
CPC classification number: H01Q1/243 , H01Q7/00 , H01Q9/0407 , H04B5/00 , H04B5/0031 , H04B5/0056
Abstract: Disclosed herein is an antenna device that includes a planar coil pattern having first, second, third and fourth sections, the first and second sections being opposite to each other, and the third and fourth sections being opposite to each other, and a metal layer having at least one aperture. A part of the first section and a part of the second section overlap the metal layer, and a remaining part of the first section and a remaining part of the second section overlap the aperture. A part or an entirety of both the third and fourth sections overlaps the metal layer or the aperture.
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公开(公告)号：US20170263373A1
公开(公告)日：2017-09-14
申请号：US15446601
申请日：2017-03-01
Applicant: TDK CORPORATION
Inventor： Syun ASHIZAWA , Toshio TOMONARI , Hirohumi ASOU , Emi ITO
Abstract: A coil device includes a winding core with a coil portion wound by a wire, first and second flanges with open magnetic circuit respectively formed on both sides of the winding core in an axial direction, and a first facing surface of the first flange and a second facing surface of the second flange facing each other in the axial direction on an outer circumference side of the coil portion. S1/S2 is 0.2 to 1.0, where S1 is a maximum lateral cross sectional area of the winding core as seen from the axial direction, and S2 is a projected overlapping area overlapped by the first facing surface and the second facing surface as seen from the axial direction.
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公开(公告)号：US20160323019A1
公开(公告)日：2016-11-03
申请号：US15099046
申请日：2016-04-14
Applicant: TDK Corporation
Inventor： Toshifumi KOMACHI , Hirohumi ASOU , Toshio TOMONARI
CPC classification number: H04B5/0081 , H01Q7/08
Abstract: An antenna device is provided with a magnetic core having a winding core and first and second flanges provided at one end and the other end of the winding core, respectively, an antenna coil constituted of a wire wound around the winding core, and a metal layer disposed parallel to a coil axis direction of the antenna coil. The metal layer has a slit overlapped with at least a part of the first flange in a plan view.
Abstract translation: 天线装置设置有具有卷绕芯的磁芯和分别设置在绕组芯的一端和另一端的第一和第二凸缘，由围绕绕芯的绕组构成的天线线圈和金属层 平行于天线线圈的线圈轴线方向设置。 金属层在平面图中具有与第一凸缘的至少一部分重叠的狭缝。
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Patent Agency Ranking
公开(公告)号：US20240322420A1
公开(公告)日：2024-09-26
申请号：US18608680
申请日：2024-03-18
Applicant: TDK Corporation
Inventor： Shoma KAJIKIYA , Tomohiro MORIKI , Yoshitomo SATO , Toshio TOMONARI
CPC classification number: H01Q1/2283 , H01Q7/005
Abstract: Disclosed herein is an antenna device that includes a metal plate having a slit, a first coil, and a second coil disposed inside an opening of the first coil and connected to the first coil. The first end of the slit is opened so as to divide an outer edge of the metal plate. The second end of the slit is terminated at a position away from the outer edge of the metal plate by a first distance so as not to divide the outer edge of the first metal plate. The slit includes a first section overlapping the second coil, a second section positioned between the first section and the first end, and a third section positioned between the first section and the second end. The first distance is smaller than a longer one of the second and third sections.
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公开(公告)号：US20240039503A1
公开(公告)日：2024-02-01
申请号：US18379596
申请日：2023-10-12
Applicant: TDK Corporation
Inventor： Yugo ASAI , Tsutomu KOBAYASHI , Daisuke URABE , Hiroshi SUZUKI , Emi ITO , Toshio TOMONARI
CPC classification number: H03H7/427 , H01F27/2823 , H03H7/09 , H03H1/00 , H01F27/06 , H01F17/04 , H01F17/045 , H01F27/006 , H01F2017/0093
Abstract: Disclosed herein is a common mode filter that includes a winding core part and first and second wires wound in a same direction around the winding core part. The first and second wires constitute a first winding block on one endmost side in an axial direction of the winding core part, a second winding block on other endmost side in the axial direction of the winding core part, and a third winding block positioned between the first and second winding blocks. The second winding block is a winding block at an odd-numbered position counted from the first winding block. The first and second wires cross each other in an area between the first and third winding blocks and in an area between the second and third winding blocks.
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公开(公告)号：US20230275351A1
公开(公告)日：2023-08-31
申请号：US18172650
申请日：2023-02-22
Applicant: TDK Corporation
Inventor： Shoma KAJIKIYA , Tomohiro MORIKI , Toshio TOMONARI
IPC: H01Q7/00 , G06K19/07 , G06K19/077
CPC classification number: H01Q7/00 , G06K19/0723 , G06K19/07749
Abstract: Disclosed herein is an antenna module that includes a coil pattern planarly wound in a plurality of turns; a first adhesive layer attached to a first surface of the coil pattern in an axial direction of the coil pattern; a second adhesive layer attached to a second surface of the coil pattern in the axial direction of the coil pattern, the second surface being opposite to the first surface; and a magnetic member attached to the first adhesive layer such that the first adhesive layer is sandwiched between the coil pattern and the magnetic member. The first and second adhesive layers bulge to a gap between adjacent patterns of the coil pattern.
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公开(公告)号：US20210125772A1
公开(公告)日：2021-04-29
申请号：US17141695
申请日：2021-01-05
Applicant: TDK Corporation
Inventor： Toshio TOMONARI , Tsutomu KOBAYASHI , Kazunori ARIMITSU
Abstract: Disclosed herein is a common mode filter that comprises a drum core including a winding core portion and a pair of flange portions provided at both ends of the winding core portion, and first and second wires wound around the winding core portion so as to form a pair-wire for each turn. The first and second wires includes one or a plurality of sparsely-wound portions in which the first and second wires are wound with adjacent pair-wires spaced from each other, and one or a plurality of closely-wound portions in which the first and second wires are wound with adjacent pair-wires in close contact with each other.
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公开(公告)号：US20210111604A1
公开(公告)日：2021-04-15
申请号：US17015687
申请日：2020-09-09
Applicant: TDK Corporation
Inventor： Toshio TOMONARI , Noritaka CHIYO , Koji MITAKE , Toshihiro KUROSHIMA
Abstract: A rotating electrical machine includes a stator, a rotor with a permanent magnet, a first number of one or more first coils, and a second number of one or more second coils. The second number is different from the first number. The one or more first coils are disposed on the stator. The one or more second coils are disposed on the rotor. The one or more first coils and the one or more second coils are disposed on the stator and the rotor, respectively, in such a manner as to closely oppose each other in a state where the rotor is at a predetermined rotation angle position. The one or more first coils are arranged to induce a voltage in response to a relative position with respect to the one or more second coils.
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