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公开(公告)号：US20170345553A1
公开(公告)日：2017-11-30
申请号：US15598606
申请日：2017-05-18
Applicant: TDK CORPORATION
Inventor： Masashi SHIMOYASU , Shinichi SATO , Seiichi NAKAGAWA , Mamoru KAWAUCHI , Shigetoshi KINOUCHI , Mitsuru ITO , Yuto SHIGA
CPC classification number: H01F27/2804 , H01F17/0013 , H01F27/29 , H01F27/292 , H01F27/324 , H01F2027/2809
Abstract: A multilayer coil component includes an element body, a coil disposed in the element body, and an external electrode disposed in the element body and electrically connected to the coil. The element body includes a principal surface that is a mounting surface, and an end surface positioned adjacent to the principal surface and extending in a direction crossing to the principal surface. The external electrode includes an underlying metal layer and a conductive resin layer. The underlying metal layer is formed on the principal surface and the end surface. The conductive resin layer is formed to cover the underlying metal layer. A thickness of the conductive resin layer at an end positioned above the principal surface of the underlying metal layer is equal to or greater than 50% of a maximum thickness of a portion positioned above the principal surface of the conductive resin layer.
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公开(公告)号：US20190122800A1
公开(公告)日：2019-04-25
申请号：US16158779
申请日：2018-10-12
Applicant: TDK CORPORATION
Inventor： Yuya OSHIMA , Shinichi KONDO , Junichi OTSUKA , Yohei TADAKI , Kazuo IWAI , Masayuki SUZUKI , Shigeshi OSAWA , Kazuhiro EBINA , Makoto YOSHINO , Mamoru KAWAUCHI
Abstract: First internal conductors are separated from each other in a first direction. Each of the first internal conductors includes a coil portion and a pad portion having a width larger than a width of the coil portion. The pad portions adjacent to each other in the first direction are connected to each other via a through-hole conductor and overlap each other when viewed from the first direction. When viewed from the first direction, each of the coil portions includes a first portion not overlapping the pad portion adjacent in the first direction and a second portion overlapping a part of the pad portion adjacent in the first direction. A second internal conductor is disposed on the same layer as the second portion and is positioned to overlap a portion of the pad portion adjacent in the first direction not overlapping the second portion when viewed from the first direction.
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公开(公告)号：US20180096789A1
公开(公告)日：2018-04-05
申请号：US15725129
申请日：2017-10-04
Applicant: TDK CORPORATION
Inventor： Yuya OSHIMA , Makoto YOSHINO , Yoji TOZAWA , Junichi OTSUKA , Kazuo IWAI , Yohei TADAKI , Shinichi KONDO , Kazuhiro EBINA , Mamoru KAWAUCHI
CPC classification number: H01F41/043 , H01F17/0013 , H01F27/2804 , H01F41/046 , H01F2017/0066
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：US20250069795A1
公开(公告)日：2025-02-27
申请号：US18941111
申请日：2024-11-08
Applicant: TDK CORPORATION
Inventor： Masashi SHIMOYASU , Shinichi SATO , Seiichi NAKAGAWA , Mamoru KAWAUCHI , Shigetoshi KINOUCHI , Mitsuru ITO , Yuto SHIGA
Abstract: A multilayer coil component includes an element body, a coil in the element body, a connection conductor in the element body, and an external electrode on the element body. The element body includes a principal surface arranged to constitute a mounting surface and an end surface positioned adjacent to the principal surface. The connection conductor includes one end connected to the coil and another end connected to the external electrode. The external electrode includes a sintered metal layer formed on the element body and a conductive resin layer formed on the sintered metal layer. The sintered metal layer includes a portion on the principal surface and a portion on the end surface. The portion on the principal surface has an average thickness smaller than an average thickness of the portion on the end surface.
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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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公开(公告)号：US20240038436A1
公开(公告)日：2024-02-01
申请号：US18378815
申请日：2023-10-11
Applicant: TDK CORPORATION
Inventor： Masashi SHIMOYASU , Shinichi SATO , Seiichi NAKAGAWA , Mamoru KAWAUCHI , Shigetoshi KINOUCHI , Mitsuru ITO , Yuto SHIGA
CPC classification number: H01F27/2804 , H01F17/0013 , H01F27/292 , H01F27/29 , H01F27/324 , H01F2027/2809
Abstract: A multilayer coil component includes an element body, a coil disposed in the element body, and an external electrode disposed in the element body and electrically connected to the coil. The element body includes a principal surface that is a mounting surface, and an end surface positioned adjacent to the principal surface and extending in a direction crossing to the principal surface. The external electrode includes an underlying metal layer and a conductive resin layer. The underlying metal layer is formed on the principal surface and the end surface. The conductive resin layer is formed to cover the underlying metal layer. A thickness of the conductive resin layer at an end positioned above the principal surface of the underlying metal layer is equal to or greater than 50% of a maximum thickness of a portion positioned above the principal surface of the conductive resin layer.
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公开(公告)号：US20220130594A1
公开(公告)日：2022-04-28
申请号：US17573301
申请日：2022-01-11
Applicant: TDK CORPORATION
Inventor： Masashi SHIMOYASU , Shinichi SATO , Seiichi NAKAGAWA , Mamoru KAWAUCHI , Shigetoshi KINOUCHI , Mitsuru ITO
Abstract: A multilayer coil component includes an element body, a coil disposed in the element body, and an external electrode disposed in the element body and electrically connected to the coil. The element body includes a principal surface that is a mounting surface, and an end surface positioned adjacent to the principal surface and extending in a direction crossing to the principal surface. The external electrode includes an underlying metal layer and a conductive resin layer. The underlying metal layer is formed on the principal surface and the end surface. The conductive resin layer is formed to cover the underlying metal layer. A thickness of the conductive resin layer at an end positioned above the principal surface of the underlying metal layer is equal to or greater than 50% of a maximum thickness of a portion positioned above the principal surface of the conductive resin layer.
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公开(公告)号：US20200185144A1
公开(公告)日：2020-06-11
申请号：US16789893
申请日：2020-02-13
Applicant: TDK CORPORATION
Inventor： Masashi SHIMOYASU , Shinichi SATO , Seiichi NAKAGAWA , Mamoru KAWAUCHI , Shigetoshi KINOUCHI , Mitsuru ITO
Abstract: A multilayer coil component includes an element body, a coil disposed in the element body, and an external electrode disposed in the element body and electrically connected to the coil. The element body includes a principal surface that is a mounting surface, and an end surface positioned adjacent to the principal surface and extending in a direction crossing to the principal surface. The external electrode includes an underlying metal layer and a conductive resin layer. The underlying metal layer is formed on the principal surface and the end surface. The conductive resin layer is formed to cover the underlying metal layer. A thickness of the conductive resin layer at an end positioned above the principal surface of the underlying metal layer is equal to or greater than 50% of a maximum thickness of a portion positioned above the principal surface of the conductive resin layer.
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