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1.发明授权公开(公告)号：US11923152B2
公开(公告)日：2024-03-05
申请号：US17677121
申请日：2022-02-22
CPC分类号： H01G9/15 , H01G9/0032 , H01G9/042 , H01G9/0525 , H01G9/07 , H01G2009/05
摘要： An electrolytic capacitor includes a capacitor element that includes an anode body that has a porous structure, a dielectric layer disposed on a surface of the anode body, and a solid electrolyte layer that covers at least a part of the dielectric layer. The anode body contains a first group metal including at least one selected from the group consisting of tantalum, niobium, titanium, aluminum, and zirconium. The dielectric layer contains an oxide of the first group metal and a second group metal including at least one selected from the group consisting of iron, chromium, copper, silicon, molybdenum, sodium, and nickel. A ratio X of a total number of atoms of the second group metal to a total number of atoms of the first group metal in the dielectric layer is equal to or less than 100 ppm.
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公开(公告)号：US10026559B2
公开(公告)日：2018-07-17
申请号：US15088274
申请日：2016-04-01
发明人： Masahiro Ueda
摘要： An electrolytic capacitor includes an anode body, a dielectric layer disposed on the anode body, and a cathode body. An organic polymer attached to the dielectric layer is disposed between the dielectric layer and the cathode body. The organic polymer has one or more groups selected from an acidic group and residues of the acidic group, and at least one of the one or more groups is incorporated into the dielectric layer.
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公开(公告)号：US09818550B2
公开(公告)日：2017-11-14
申请号：US14659807
申请日：2015-03-17
发明人： Keiko Kosuge , Masahiro Ueda
摘要： A method for manufacturing a solid electrolytic capacitor which includes a capacitor element including: an positive electrode body with a dielectric film formed on a surface thereof; and a solid electrolyte layer formed over the positive electrode body, the method including the steps of: forming the dielectric film on the surface of the positive electrode body; forming the solid electrolyte layer on the dielectric film; heating and melting an ionic compound; impregnating the positive electrode body, on which the solid electrolyte layer is formed, with the melted ionic compound; and cooling and solidifying the ionic compound after impregnating the positive electrode body with the ionic compound.
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公开(公告)号：US11823845B2
公开(公告)日：2023-11-21
申请号：US17598734
申请日：2020-02-26
发明人： Norihiko Ogata , Yuma Yano , Kazuhide Gotou , Yukiyasu Sugihara , Masayuki Hogiri , Masahiro Ueda , Kazuhito Odane
CPC分类号： H01G9/012 , H01G9/028 , H01G9/052 , H01G9/15 , H01G9/0525
摘要： An electrolytic capacitor including a capacitor element that includes an anode body being porous, a dielectric layer formed on the surface of the anode body, and a solid electrolyte layer covering at least part of the dielectric layer. The anode body has a plurality of principal surfaces and a corner portion. The corner portion includes a plurality of side portions connecting between the principal surfaces, and one or more vertex portions connecting between the principal surfaces. A surface layer X of at least part of the corner portion is more compact in texture than a surface layer Y of the principal surface adjacent to the surface layer X.
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公开(公告)号：US11031188B2
公开(公告)日：2021-06-08
申请号：US16354516
申请日：2019-03-15
发明人： Masahiro Ueda , Kenji Taki
摘要： A solid electrolytic capacitor includes a capacitor element, an anode frame, a cathode frame, and an exterior body. The capacitor element includes an anode body, a dielectric body disposed on a surface of the anode body, and a cathode part. The anode frame is electrically connected to the anode body. The cathode frame is electrically connected to the cathode part. The exterior body seals the capacitor element in a state that a part of the anode frame and a part of the cathode frame are exposed from the exterior body. At least one of the anode frame and the cathode frame has at least one groove on a surface adhered to the exterior body. The at least one groove intersects with an extending direction in which the anode frame or the cathode frame extends from the capacitor element to outside of the exterior body.
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