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公开(公告)号：US20180258548A1
公开(公告)日：2018-09-13
申请号：US15980132
申请日：2018-05-15
发明人： KYOHEI KOBAYASHI , YUKIYASU SUGIHARA , HIROSHI YOSHIDA , MITSUHISA YOSHIMURA , HIROMI NAKANISHI
摘要： A method for producing an electrode foil includes an electrolytic etching step of etching a metal foil containing first metal by applying current between the metal foil and an electrode in etching liquid while a principal surface of the metal foil faces the electrode. A masking member is disposed between the principal surface of the metal foil and the electrode so as to cover a partial region of the principal surface. The masking member is an electric conductor. The masking member is electrically connected with the metal foil.
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公开(公告)号：US20220310328A1
公开(公告)日：2022-09-29
申请号：US17651413
申请日：2022-02-16
发明人： YUKIYASU SUGIHARA , NORIHIKO OGATA , KAZUHIDE GOTOU , YUMA YANO , YUKI UEDA , MASAYUKI HOGIRI
摘要： An electrolytic capacitor includes an anode body having a porous structure, an anode lead having a sheet shape, a dielectric layer disposed on a surface of the anode body, a cathode layer covering at least a part of the dielectric layer, an anode lead frame electrically connected to the anode lead, and a cathode lead frame electrically connected to the cathode lead. The anode lead includes an embedded portion embedded in the anode body and a protrusion portion protruding to an outside of the anode body. The anode lead has a first main surface facing the cathode lead frame and a second main surface opposite to the first main surface. The anode lead is located between a center of the anode body and an end face of the anode body in a first direction in which the first main surface faces the cathode lead frame. The end face of the anode body is positioned at a side close to the cathode lead frame.
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公开(公告)号：US20220238282A1
公开(公告)日：2022-07-28
申请号：US17562098
申请日：2021-12-27
发明人： YUKIYASU SUGIHARA , NORIHIKO OGATA , KAZUHIDE GOTOU , YUMA YANO , YUKI UEDA , TAKESHI MINAMIURA , MASAYUKI HOGIRI
摘要： An electrolytic capacitor includes an anode body having a porous structure, an anode lead partially embedded in the anode body, a dielectric layer formed on a surface of the anode body, and a cathode part that covers at least part of the dielectric layer. The anode body has a first region in which first particles sintered together and a second region in which second particles sintered together. The average particle diameter D1 of the first particles is smaller than the average particle diameter D2 of the second particles. The volume-based pore diameter distribution of the anode body with the dielectric layer has a first peak in a range of less than or equal to 0.5 μm in pore diameter, and a second peak in a range of more than 0.5 μm in pore diameter.
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公开(公告)号：US20230207224A1
公开(公告)日：2023-06-29
申请号：US18171398
申请日：2023-02-20
CPC分类号： H01G9/15 , H01G9/028 , H01G9/0525
摘要： An electrolytic capacitor includes a capacitor element that includes a porous anode body including an anode base body and a dielectric layer formed on a surface of the anode base body, and a solid electrolyte layer that covers at least a part of the dielectric layer. The anode body includes a plurality of principal surfaces, and at least a part of a surface layer of at least one principal surface of the plurality of principal surfaces of the anode body is denser than an inside of the anode body.
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公开(公告)号：US20180261393A1
公开(公告)日：2018-09-13
申请号：US15981704
申请日：2018-05-16
发明人： KYOHEI KOBAYASHI , YUKIYASU SUGIHARA , HIROSHI YOSHIDA , MITSUHISA YOSHIMURA , HIROMI NAKANISHI
CPC分类号： H01G9/055 , C25F3/02 , C25F3/14 , C25F7/00 , H01G9/0032 , H01G9/0036 , H01G9/07 , H01G9/15
摘要： A method for producing an electrode foil includes: a first step of preparing a metal foil, the metal foil having a strip shape; a second step of disposing a masking member so as to cover part of a principal surface of the metal foil; and a third step of partially etching the principal surface of the metal foil by applying current between the metal foil and an electrode while the metal foil faces the electrode via the masking member in etching liquid after the second step. The masking member has a strip shape. In the second step, the masking member is disposed along a longitudinal direction of the metal foil so as to be separated from both side edges of the metal foil.
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