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公开(公告)号：US20240128020A1
公开(公告)日：2024-04-18
申请号：US18474733
申请日：2023-09-26
Applicant: TDK CORPORATION
Inventor： Yuya OSHIMA , Junichi OTSUKA , Yohei TADAKI , Shinichi KONDO , Koki ITO , Yoji TOZAWA , Shigeshi OSAWA , Tsubasa OZAWA , Makoto YOSHINO
CPC classification number: H01F41/12 , H01F17/0013 , H01F27/32
Abstract: In a method for manufacturing a laminated coil component, in which a laminated coil component is manufactured by laminating insulator sheets in order on which conductors having predetermined patterns are formed, the insulator sheets are laminated such that a distance in a lamination direction between a first lead-out conductor laminated first and a first coil conductor laminated next is larger than a distance in the lamination direction between a second lead-out conductor laminated last and a second coil conductor laminated immediately before the second lead-out conductor.
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公开(公告)号：US20140333405A1
公开(公告)日：2014-11-13
申请号：US14266214
申请日：2014-04-30
Applicant: TDK CORPORATION
Inventor： Hiroki CHOTO , Takashi SUZUKI , Shinichi KONDO , Yuya OSHIMA , Masahiro ENDO , Masaki TAKAHASHI
IPC: H01F1/40
CPC classification number: H01F1/401 , H01F1/37 , H01F17/0013
Abstract: A composite ferrite composition comprises a magnetic material and a non-magnetic material. A mixing ratio of said magnetic material and said non-magnetic material is 20 wt %:80 wt % to 80 wt %:20 wt %. Ni—Cu—Zn based ferrite is used as the magnetic material. Oxides of Zn, Cu, and Si are at least included in a main component of said non-magnetic material. Borosilicate glass is included in a subcomponent of said non-magnetic material.
Abstract translation: 复合铁氧体组合物包括磁性材料和非磁性材料。 所述磁性材料和所述非磁性材料的混合比为20重量％：80重量％至80重量％：20重量％。 使用Ni-Cu-Zn系铁氧体作为磁性材料。 Zn，Cu和Si的氧化物至少包括在所述非磁性材料的主要成分中。 硼硅酸盐玻璃被包括在所述非磁性材料的副成分中。
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公开(公告)号：US20240128006A1
公开(公告)日：2024-04-18
申请号：US18484833
申请日：2023-10-11
Applicant: TDK CORPORATION
Inventor： Yuya OSHIMA , Hiroshi ONO , Ryosuke HORIE , Daiki YAMADA , Yuki AKASAKA , Shuichi WATANABE , Satoshi TAKASU , Makoto YOSHINO , Takahiro YATA
IPC: H01F17/00
CPC classification number: H01F17/0013
Abstract: A laminated coil component includes: an element body having a first surface and a second surface facing each other in a first direction; a coil unit formed by laminating a plurality of coil conductors in a second direction orthogonal to the first direction inside the element body; a first lead-out conductor; and a second lead-out conductor. A first coil conductor adjacent to the first lead-out conductor in the second direction includes a first side portion extending along the first surface, on a first surface side. A second coil conductor adjacent to the second lead-out conductor in the second direction includes a second side portion extending along the second surface, on a second surface side. The first side portion has a larger line width than other side portions of the first coil conductor and the second side portion.
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公开(公告)号：US20220310316A1
公开(公告)日：2022-09-29
申请号：US17705969
申请日：2022-03-28
Applicant: TDK CORPORATION
Inventor： Yuya OSHIMA , Kenji KOMORITA , Masayuki SUZUKI , Yuudai KATOU , Takeru SASAKI , Shigeshi OSAWA , Takehiro ISHII , Kouichi KAKUDA , Yukio TAKAHASHI , Tsubasa OZAWA , Makoto YOSHINO
Abstract: In the multi-layer coil component, the hole portion is provided in the vicinity of the side surface of the element body, and the distance from the tip position of the external electrode to the hole portion is shorter than the distance from the tip position of the external electrode to the coil. Therefore, when a crack is generated starting from the tip position of the external electrode on the mounting surface, the crack progress toward the hole portion located at a distance closer than the coil. Therefore, in the multi-layer coil component, splitting of the coil due to the crack can be prevented.
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公开(公告)号：US20200234877A1
公开(公告)日：2020-07-23
申请号：US16843228
申请日：2020-04-08
Applicant: TDK CORPORATION
Inventor： Yuya OSHIMA , Makoto YOSHINO , Yoji TOZAWA , Junichi OTSUKA , Kazuo IWAI , Yohei TADAKI , Shinichi KONDO , Kazuhiro EBINA , Mamoru KAWAUCHI
Abstract: A method of manufacturing a laminated coil component is a method of manufacturing a laminated coil component provided with a laminate obtained by laminating a coil conductor forming a spiral coil and an insulator layer. The method of manufacturing a laminated coil component includes a step of providing a conductor pattern configured to become a coil conductor on a green sheet configured to become an insulator layer, and a step of laminating a plurality of green sheets provided with the conductor pattern. The conductor pattern includes a pair of first side surfaces opposed to each other in an orthogonal direction orthogonal to a laminating direction of the green sheet. At the step of laminating a plurality of green sheets, a depression is formed on at least one of the pair of first side surfaces.
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Patent Agency Ranking
公开(公告)号：US20250104897A1
公开(公告)日：2025-03-27
申请号：US18813360
申请日：2024-08-23
Applicant: TDK Corporation
Inventor： Tsubasa OZAWA , Yohei TADAKI , Takuya NIIBORI , Asuka ISHII , Yuya OSHIMA , Akihiko OIDE
Abstract: A multilayer coil component includes: an element body having a pair of first side surfaces opposite to each other in a first direction and a pair of second side surfaces opposite to each other in a second direction orthogonal to the first direction; and a coil disposed inside the element body and having a coil axis extending in a third direction orthogonal to the first direction and the second direction, in which one of the pair of first side surfaces is a mounting surface, and a ratio of a first gap in the first direction between the coil and the mounting surface to a size of the element body in the first direction is 12 to 30% in a cross section viewed in the third direction.
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公开(公告)号：US20220013278A1
公开(公告)日：2022-01-13
申请号：US17368332
申请日：2021-07-06
Applicant: TDK CORPORATION
Inventor： Yuya OSHIMA , Junichi OTSUKA , Shinichi KONDO , Yohei TADAKI , Kazuo IWAI , Masayuki SUZUKI , Emiri MATSUHASHI , Takuya NIIBORI
Abstract: A multilayer coil component includes an element body, first and second coils, and a pair of external electrodes. The element body includes a plurality of insulator layers laminated in a first direction. The element body has a pair of end surfaces opposing each other in a second direction orthogonal to the first direction. The first coil and the second coil are disposed in the element body and respectively have coil shafts along the second direction. The pair of external electrodes are disposed on the pair of end surfaces and electrically connected to both ends of the first coil and the second coil. The first coil includes a first conductor layer, a second conductor layer, and a first through hole conductor. The coil shaft of the first coil is disposed inside the second coil.
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公开(公告)号：US20160293301A1
公开(公告)日：2016-10-06
申请号：US15089992
申请日：2016-04-04
Applicant: TDK CORPORATION
Inventor： Hiroki CHOTO , Takeshi SHIBAYAMA , Takashi SUZUKI , Shinichi KONDO , Yuya OSHIMA , Masaki TAKAHASHI
CPC classification number: H01F1/344 , H01F17/0013 , H01F17/04 , H01F27/292 , H01F2017/048
Abstract: Provided is a composite ferrite composition including a magnetic substance material and a nonmagnetic substance material. The magnetic substance material is Ni—Cu—Zn based ferrite. The nonmagnetic substance material comprises a low dielectric constant nonmagnetic substance material, which is shown by a general formula: a(bZnO.cCuO).SiO2 and satisfies a=1.5 to 2.4, b=0.85 to 0.98, c=0.02 to 0.15, and b+c=1.00 in said general formula, and a bismuth oxide. A mixing ratio of the magnetic substance material and the low dielectric constant nonmagnetic substance material is 80 wt %:20 wt % to 10 wt %:90 wt %.
Abstract translation: 提供一种包含磁性物质材料和非磁性物质材料的复合铁氧体组合物。 磁性物质是Ni-Cu-Zn系铁氧体。 非磁性物质材料包括低介电常数非磁性物质材料，其通式为a（bZnO.cCuO）·SiO2，满足a = 1.5〜2.4，b = 0.85〜0.98，c = 0.02〜0.15， 所述通式中的b + c = 1.00，和氧化铋。 磁性体材料和低介电常数非磁性物质的混合比为80重量％：20重量％〜10重量％：90重量％。
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公开(公告)号：US20230402211A1
公开(公告)日：2023-12-14
申请号：US18330073
申请日：2023-06-06
Applicant: TDK CORPORATION
Inventor： Kouichi KAKUDA , Yuya OSHIMA , Kenji KOMORITA , Shigeshi OSAWA , Shinichi KONDO , Hiroyuki TANOUE , Kaori SASAKI , Takuya NIIBORI , Yukio TAKAHASHI , Hidenobu UMEDA
CPC classification number: H01F1/344 , C04B35/265 , C04B2235/3274 , C04B2235/3293 , C04B2235/3277 , C04B2235/3298
Abstract: A ferrite composition includes a main component and a sub component. The main component includes an iron oxide in terms of Fe2O3, a copper oxide in terms of CuO, a zinc oxide in terms of ZnO, and a nickel oxide as its remainder. The sub component includes a cobalt oxide in terms of Co3O4, a tin oxide in terms of SnO2, and a bismuth oxide in terms of Bi2O3. A is −3.5 or more and 1.0 or less, provided that A=(α−18)/β; is defined, in which α is an amount of the zinc oxide represented by mol % in terms of ZnO in the main component, and β is an amount of the cobalt oxide represented by parts by weight in terms of Co3O4 with respect to 100 parts by weight of the main component.
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公开(公告)号：US20230170117A1
公开(公告)日：2023-06-01
申请号：US17992292
申请日：2022-11-22
Applicant: TDK CORPORATION
Inventor： Yuya OSHIMA , Kenji KOMORITA , Takehiro ISHII , Kouichi KAKUDA , Shigeshi OSAWA , Yusaku ABE , Tsubasa OZAWA , Midori KISHIMOTO , Makoto YOSHINO , Koki ITO , Masato KUDOU
Abstract: In a multilayer coil component, a plurality of coil conductors are stacked in a coil axis direction. A connecting conductor connects the coil conductors adjacent to each other in the coil axis direction. First, second, and third coil conductors are arranged in order in the coil axis direction. A main body portion extends in a circumferential direction of the coil axis. Pad portions are connected to the main body portion, are connected to the first coil conductor via the connecting conductor, overhang from the third coil conductor in a direction away from the coil axis when viewed from the coil axis direction, and are inclined with respect to a virtual plane orthogonal to the coil axis direction.
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