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公开(公告)号:US20240282510A1
公开(公告)日:2024-08-22
申请号:US18583170
申请日:2024-02-21
Applicant: TDK CORPORATION
Inventor: Kazunori ARIMITSU , Kiichi FUJISAWA , Masashi HAMA , Nobuo KITAJIMA , Fuyuki MIURA , Takehiko NARISAWA , Masanori SATO
CPC classification number: H01F27/292 , H01F27/2828
Abstract: A coil device has a wound portion, a leadout portion led out from the wound portion, a terminal including a wire connecting portion connected to the leadout portion, and an element body covering the wound portion, the leadout portion and the wire connecting portion. A winding axis of the wound portion is perpendicular to a mounting facing surface of the element body. The leadout portion has a bent portion bent so as to protrude inward when viewed along the winding axis, and an inner angle of the bent portion is an obtuse angle.
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公开(公告)号:US20230162906A1
公开(公告)日:2023-05-25
申请号:US17984020
申请日:2022-11-09
Applicant: TDK CORPORATION
Inventor: Kazunori ARIMITSU , Nobuo KITAJIMA , Kiichi FUJISAWA , Fuyuki MIURA , Takehiko NARISAWA , Makoto TAKAHASHI
IPC: H01F27/29
CPC classification number: H01F27/29
Abstract: An inductor 1 includes a coil 2 made of a flat wire, a terminal 4a including a wire connecting portion 42a connected to a lead portion 3a of the coil 2, a terminal 4b including a wire connecting portion 42b connected to a lead portion 3b of the coil 2, and a core 8 that covers the coil 2 together with the wire connecting portion 42a and the wire connecting portion 42b. The wire connecting portion 42a is positioned outside the lead portion 3a that is led out in a front-rear direction of the core 8, along a left-right direction of the core 8. The wire connecting portion 42b is positioned outside the lead portion 3b that is led out in the front-rear direction of the core 8, along the left-right direction of the core 8.
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公开(公告)号:US20220020527A1
公开(公告)日:2022-01-20
申请号:US17375370
申请日:2021-07-14
Applicant: TDK CORPORATION
Inventor: Kazunori ARIMITSU , Nobuo KITAJIMA
IPC: H01F27/29 , H01F27/28 , H01F27/255
Abstract: An inductor includes a coreless coil and terminals connected to end portions of the coreless coil. Positioning portions regulating the position of the coreless coil are formed at the terminals.
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公开(公告)号:US20170352474A1
公开(公告)日:2017-12-07
申请号:US15683157
申请日:2017-08-22
Applicant: TDK Corporation
Inventor: Masaaki IWAKURA , Katsuhiro ISHIGAKI , Hiroshi MAEDA , Satoshi SHINBO , Nobuo KITAJIMA
CPC classification number: H01F27/325 , H01F5/02 , H01F27/2823 , H01F2005/022
Abstract: A coil device includes a bobbin, a first winding part, and a second winding part. A partition portion is formed on an outer peripheral surface of the bobbin. The first winding part is wound around the outer peripheral surface at one side of the partition portion. The second winding part is wound around the outer peripheral surface at the other side of the partition portion and has an inner winding layer and an outer winding layer located farther to the outer peripheral surface at the other side than the inner winding layer.
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公开(公告)号:US20240282509A1
公开(公告)日:2024-08-22
申请号:US18583137
申请日:2024-02-21
Applicant: TDK CORPORATION
Inventor: Kazunori ARIMITSU , Kiichi FUJISAWA , Masashi HAMA , Nobuo KITAJIMA , Makoto TAKAHASHI , Katsushi YASUHARA , Hironobu FURUKAWA , Ryuya KON
CPC classification number: H01F27/292 , H01F27/24
Abstract: A coil device has a wound portion, a leadout portion led out from the wound portion in a first direction, and an element body covering the wound portion and the leadout portion. A winding axis of the wound portion is perpendicular to a mounting facing surface of the element body and is displaced to a second direction opposite to the first direction with respect to a center of the element body. An outer circumferential surface of the wound portion is distorted so as to bulge outward in the first direction from the outer circumferential surface of the wound portion.
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公开(公告)号:US20230162907A1
公开(公告)日:2023-05-25
申请号:US17986033
申请日:2022-11-14
Applicant: TDK CORPORATION
Inventor: Kazunori ARIMITSU , Nobuo KITAJIMA , Kiichi FUJISAWA
Abstract: An inductor includes a coil; terminals including wire connecting portions connected to lead portions of the coil, and base portions positioned at substantially the same height as a bottom surface of the coil and holding the wire connecting portions; and a core covering the coil together with the wire connecting portions and the base portions. The base portions include main branch portions and sub branch portions. Inner edges of the main branch portions are formed with curved portions curved along an outer peripheral surface of the coil at positions separated from the outer peripheral surface of the coil, respectively. Inner edges of the sub branch portions are formed with curved portions curved along the outer peripheral surface of the coil at positions separated from the outer peripheral surface of the coil, respectively.
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公开(公告)号:US20220020528A1
公开(公告)日:2022-01-20
申请号:US17375760
申请日:2021-07-14
Applicant: TDK CORPORATION
Inventor: Kazunori ARIMITSU , Nobuo KITAJIMA
IPC: H01F27/29 , H01F27/255 , H01F27/28
Abstract: An inductor includes: a coil; terminals connected to end portions of the coil; a first core having a columnar portion where the coil is disposed and a base portion having an upper surface where the columnar portion is formed; and a second core covering the upper surface of the base portion together with the coil. The terminals are disposed on the upper surface of the base portion.
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公开(公告)号:US20160293317A1
公开(公告)日:2016-10-06
申请号:US15076227
申请日:2016-03-21
Applicant: TDK CORPORATION
Inventor: Masaaki IWAKURA , Katsuhiro ISHIGAKI , Hiroshi MAEDA , Satoshi SINBO , Nobuo KITAJIMA
CPC classification number: H01F27/325 , H01F5/02 , H01F27/2823 , H01F2005/022
Abstract: A coil device includes a bobbin, a first winding part, and a second winding part. A partition portion is formed on an outer peripheral surface of the bobbin. The first winding part is wound around the outer peripheral surface at one side of the partition portion. The second winding part is wound around the outer peripheral surface at the other side of the partition portion and has an inner winding layer and an outer winding layer located farther to the outer peripheral surface at the other side than the inner winding layer.
Abstract translation: 线圈装置包括线轴,第一绕组部分和第二绕组部分。 在筒管的外周面形成有分隔部。 第一卷绕部分围绕分隔部分一侧的外周表面缠绕。 第二绕线部分缠绕在分隔部分的另一侧的外周表面上,并且具有位于比内部绕组层更靠外侧表面的内部绕组层和外部绕组层。
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公开(公告)号:US20240145151A1
公开(公告)日:2024-05-02
申请号:US18498131
申请日:2023-10-31
Applicant: TDK CORPORATION
Inventor: Masayoshi SHIMAZAKI , Osamu OHHATA , Naoto TSUKAMOTO , Sena YOSHINO , Nobuo KITAJIMA , Masashi GOTOH
CPC classification number: H01F17/04 , H01F27/24 , H01F27/2823
Abstract: Provided is a coil component including a core member and a wire wound around the core member, wherein a cross section of the core member perpendicular to a winding axis of the wire wound around the core member has a circumference shape comprising at least three first arcs and connecting lines connecting the at least three first arcs adjacent to each other, and each of the at least three first arcs has a predetermined radius and a predetermined central angle for closely contacting the wire and the core member.
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公开(公告)号:US20230117965A1
公开(公告)日:2023-04-20
申请号:US17964972
申请日:2022-10-13
Applicant: TDK CORPORATION
Inventor: Makoto ONO , Nobuo KITAJIMA
Abstract: Provided is a solder composition containing Sn. The composition comprises: 1.0% by mass or more and 5.0% by mass or less of Cu; 0.1% by mass or more and 0.5% by mass or less of Ni; and more than 0.01% by mass and 0.5% by mass or less of Ge.
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