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公开(公告)号：US11955267B2
公开(公告)日：2024-04-09
申请号：US16962684
申请日：2019-01-15
Inventor： Toshiyuki Asahi , Junichi Kotani
Abstract: A reactor includes a first and second winding, a coupling core portion, and a first and second core portion. The coupling core portion forms a coupling magnetic path, through which a magnetic flux generated by the first winding when the first winding is energized and a magnetic flux generated by the second winding when the second winding is energized pass, which magnetically couples the first winding and the second winding together. The first core portion forms a first magnetic path, through which the magnetic flux generated by the first winding when the first winding is energized passes and is aligned with a first plane. The second core portion forms a second magnetic path, through which the magnetic flux generated by the second winding when the second winding is energized passes and is aligned with a second plane. The coupling plane intersects at right angles with the first and second plane.
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公开(公告)号：US12205753B2
公开(公告)日：2025-01-21
申请号：US17428303
申请日：2020-03-19
Inventor： Toshiyuki Asahi , Junichi Kotani , Shigeyuki Inagaki , Hironori Nagasaki
Abstract: A reactor includes a core and first and second coils wound around the core about first and second center axes extended in a first direction, respectively. The core includes first and second core legs disposed inside the first and second coils, respectively. The first and second coils are arranged in a second direction perpendicular to the first direction. The first coil includes a first wound-wire part wound around the first core leg and two first terminal parts extended from both end portions of the first wound-wire part, respectively. The second coil includes a second wound-wire part wound around the second core leg and two second terminal parts extended from both end portions of the second wiring wire part, respectively. The second coil has the same shape and the same dimension as the first coil.
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公开(公告)号：US11056258B2
公开(公告)日：2021-07-06
申请号：US15547681
申请日：2016-01-28
Inventor： Ken Hirota , Masaki Kato , Junichi Kotani , Nobuya Matsutani
Abstract: A production method for a magnetic material, which is expressed by a chemical structure formula Fe(Al1-xMnx)2O4, where 0
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公开(公告)号：US09520132B2
公开(公告)日：2016-12-13
申请号：US14828634
申请日：2015-08-18
Inventor： Junichi Kotani , Tomohiro Koganei
Abstract: The voice recognition device according to the present disclosure includes a communication interface that communicates with an external device, a first microphone that collects sound to produce audio data, and a controller that analyzes the audio data produced by the first microphone, determines contents of a designation corresponding to an analysis result, and then controls its own device based on a determination result, and yet controls its own device to urge a user to use the external device when the contents of the designation corresponding to the analysis result cannot be determined.
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公开(公告)号：US11222739B2
公开(公告)日：2022-01-11
申请号：US16082159
申请日：2017-03-07
Inventor： Junichi Kotani , Nobuya Matsutani
Abstract: Provided are a ferrite material, a composite magnetic body, a coil component, and a power supply device, having high magnetic permeability. Ferrite is ferromagnetic and is expressed by a chemical formula MnxSiyFezO4-δ, where 0 0, z>0, x+y+z=3, and δ≤0.5.
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Patent Agency Ranking
公开(公告)号：US10210987B2
公开(公告)日：2019-02-19
申请号：US15305941
申请日：2015-07-16
Inventor： Junichi Kotani , Nobuya Matsutani
Abstract: A composite magnetic material includes first particles made of soft magnetic metal and second particles provided between first particles. Each of the second particles includes a first solid phase and a second solid phase. The composite magnetic material exhibits high magnetic characteristics.
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公开(公告)号：US12243678B2
公开(公告)日：2025-03-04
申请号：US17441437
申请日：2020-03-13
Inventor： Junichi Kotani , Osamu Moriya , Hisayoshi Kato , Toshiyuki Asahi
Abstract: A leakage transformer includes a core and a printed wiring board. The core includes a first magnetic leg and a second magnetic leg. The second magnetic leg is spaced from the first magnetic leg. The printed wiring board includes an insulating portion and conductor wiring. The conductor wiring includes a first coil and a second coil. The first coil is formed of a first winding and is wound around only the first magnetic leg, not around the second magnetic leg. The second coil is formed of a second winding and includes a first part and a second part. The first part is wound around only the first magnetic leg, not around the second magnetic leg. The second part is wound around both the first and second magnetic legs.
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公开(公告)号：US11581129B2
公开(公告)日：2023-02-14
申请号：US16496374
申请日：2018-03-15
Inventor： Junichi Kotani , Hisayoshi Kato , Takayuki Hiruma , Osamu Moriya
Abstract: A reactor includes a plurality of windings, a coupling core, and an inductor core. A coupling core configured to form a coupling closed magnetic circuit that magnetically couples the plurality of windings, the plurality of windings being wound around the coupling core; and. An inductor core, which includes a main part, a first projection part projecting from one end of the main part, and a second projection part projecting from another end of the main part, and each of the first projection part and the second projection part is magnetically connected to the coupling core. The inductor core forms an inductor closed magnetic circuit together with a part of the coupling core around which one winding of the plurality of windings is wound.
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公开(公告)号：US10607763B2
公开(公告)日：2020-03-31
申请号：US15570520
申请日：2016-05-17
Inventor： Nobuya Matsutani , Toshiyuki Asahi , Junichi Kotani , Hiroshi Tomita , Hidenori Uematsu
Abstract: A reactor includes a coil body, an exterior case, and a filler. The coil body includes a core and a coil wound around the core. The exterior case includes a metal structure and a resin frame. The metal structure has a bottom surface and a side wall provided to stand upright from the bottom surface. The bottom surface and the side wall of the metal structure are unitarily formed with each other. The frame is disposed at an opposite side to the bottom surface of the metal structure. The exterior case houses the core and the coil. The filler is filled between the exterior case and the coil body.
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公开(公告)号：US10207323B2
公开(公告)日：2019-02-19
申请号：US15015731
申请日：2016-02-04
Inventor： Nobuya Matsutani , Takeshi Takahashi , Junichi Kotani
IPC: B22F1/00 , H01F1/24 , B22F1/02 , H01F1/33 , H01F27/255 , C22C38/02 , C22C38/06 , H01F1/147 , H02M11/00 , C22C38/00 , B82Y30/00
Abstract: A composite magnetic material includes a plurality of soft-magnetic metal powders, a first oxide that covers a surface of each of the plurality of soft-magnetic metal powders, and a second oxide that covers a surface of the first oxide and is interposed among the plurality of soft-magnetic metal powders each coated with the first oxide. The first oxide has a first recess in a surface, and the second oxide is provided in the first recess. With this configuration, peeling between the first oxide and the second oxide can be prevented, so that the composite magnetic material having high mechanical strength can be provided.
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