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公开(公告)号：US20250104926A1
公开(公告)日：2025-03-27
申请号：US18832334
申请日：2023-01-27
Inventor： Tatsuji AOYAMA , Yukiya SHIMOYAMA , Yasuhiro NISHIMURA , Honami SERIZAWA
Abstract: A disclosed manufacturing method is a method for manufacturing an electrolytic capacitor that includes an anode foil having a dielectric layer formed on a surface thereof, a cathode foil, and a separator. The manufacturing method includes, in the following order: a polymer layer formation step of forming a conductive polymer layer containing a conductive polymer component on the separator and at least one surface selected from a surface of the dielectric layer and a surface of the cathode foil; a stacked body formation step of forming a stacked body by stacking the anode foil, the cathode foil, and the separator; a liquid application step of impregnating the conductive polymer layer included in the stacked body with a liquid that includes water and an organic compound that does not boil at 100° C. under 1 atm; a removal step of removing a portion of the liquid with which the conductive polymer layer has been impregnated, such that the organic compound remains in the conductive polymer layer; and an impregnation step of impregnating the stacked body subjected to the removal step with a liquid component.
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公开(公告)号：US20230411085A1
公开(公告)日：2023-12-21
申请号：US18247068
申请日：2021-09-27
Inventor： Tatsuji AOYAMA , Shumpei MATSUSHITA
Abstract: Disclosed is an electrolytic capacitor including an anode body, a dielectric layer formed on the anode body, a cathode body, and a separator and an electrolyte that are disposed between the dielectric layer and the cathode body. At least part of the separator is coated with a conductive metal oxide.
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公开(公告)号：US20230360860A1
公开(公告)日：2023-11-09
申请号：US18042433
申请日：2021-07-21
Inventor： Kazuyo SAITO , Yuichiro TSUBAKI , Tatsuji AOYAMA , Kengo UCHIHASHI
Abstract: An electrolytic capacitor including a capacitor element, and a liquid component. The capacitor element includes an anode body having a dielectric layer at a surface of the anode body, and a conductive polymer component covering part of the dielectric layer. The liquid component contains a first solvent, a base component, and an acid component. The first solvent is at least one selected from the group consisting of a polyol and a derivative thereof. The base component contains a first base a conjugate acid of which has an acid dissociation constant of 5 or more and 10 or less and which has no boiling point or a boiling point of 100° C. or higher.
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公开(公告)号：US20230013790A1
公开(公告)日：2023-01-19
申请号：US17953544
申请日：2022-09-27
Inventor： Miyoko MASUDA , Yuichiro TSUBAKI , Tatsuji AOYAMA , Daisuke KUBO
Abstract: Disclosed is an electrolytic capacitor including: a capacitor element including a pair of electrodes; an electrolyte interposed between the pair of electrodes; a pair of leads electrically connected to the pair of electrodes, respectively; a case in which the capacitor element and the electrolyte are accommodated, and that has an opening; a sealing member that seals the opening, and has a pair of insertion holes for leading out the leads; an insulating plate having a pair of through holes for leading out the leads; and a resin member filled between the sealing member and the insulating plate, wherein the insulating plate has a resin bonding surface that abuts against the resin member, and a mounting surface opposed to the resin bonding surface, and includes at least one protrusion or recess on the resin bonding surface.
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公开(公告)号：US20210142954A1
公开(公告)日：2021-05-13
申请号：US17155644
申请日：2021-01-22
Inventor： Yuichiro TSUBAKI , Tatsuji AOYAMA
Abstract: An electrolytic capacitor includes an anode body having a dielectric layer; a solid electrolyte layer in contact with the dielectric layer of the anode body; and an electrolytic solution. The electrolytic solution contains a solvent and a solute. The solvent contains a glycol compound. The solute contains an acid component and a base component. A mass of the acid component in the solute is greater than a mass of the base component in the solute. The acid component contains a first aromatic compound having a hydroxyl group.
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Patent Agency Ranking
公开(公告)号：US20200234889A1
公开(公告)日：2020-07-23
申请号：US16842342
申请日：2020-04-07
Inventor： Yuichiro TSUBAKI , Tatsuji AOYAMA
Abstract: An electrolytic capacitor includes an anode body with a dielectric layer; a solid electrolyte layer in contact with the dielectric layer; and an electrolytic solution. The solid electrolyte layer includes a π-conjugated conductive polymer and a first sulfonic acid. The electrolytic solution includes a solvent and an acid component. The solvent includes a glycol compound. And a proportion of the glycol compound in the solvent is equal to or more than 50% by mass.
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公开(公告)号：US20180108490A1
公开(公告)日：2018-04-19
申请号：US15841072
申请日：2017-12-13
Inventor： Daisuke KUBO , Masayuki TAKAHASHI , Yukihiro SHIMASAKI , Tomoyuki TASHIRO , Tatsuji AOYAMA
CPC classification number: H01G9/151 , H01G9/0029 , H01G9/02 , H01G9/028 , H01G9/035 , H01G9/048 , H01G9/07 , H01G13/04
Abstract: An electrical storage device includes an electrical storage element and an electrolytic solution. The electrical storage element is formed of an anode body, a cathode body facing the anode body, and a separator interposed between the anode body and the cathode body. The separator includes a separator substrate and a conductive polymer adhering to the separator substrate. The electrical storage element is impregnated with the electrolytic solution. The separator includes a first surface layer having a first surface facing the anode body and a second surface layer having a second surface facing the cathode body. The first surface layer includes a first region that is not provided with the conductive polymer, and the second surface layer includes a second region provided with the conductive polymer.
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公开(公告)号：US20170133159A1
公开(公告)日：2017-05-11
申请号：US15323386
申请日：2015-06-26
Inventor： Tatsuji AOYAMA , Yukiya SHIMOYAMA , Junya KUSHIZAKI , Takuya MARUTA
IPC: H01G9/00
CPC classification number: H01G9/0032 , H01G9/0036 , H01G9/028
Abstract: A method for manufacturing an electrolytic capacitor includes: a first step of preparing a capacitor element including an anode having a dielectric layer; a second step of impregnating the capacitor element with a first processing solution including at least a conductive polymer and a first solvent; and a third step of swelling the conductive polymer after the second step, by impregnating the capacitor element with a second processing solution including a swelling agent while at least part of the first solvent remains in the capacitor element.
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公开(公告)号：US20250046528A1
公开(公告)日：2025-02-06
申请号：US18723795
申请日：2022-12-26
Inventor： Yuichiro TSUBAKI , Tatsuji AOYAMA , Kazuyo SAITO
Abstract: An electrolytic capacitor includes a container with an opening, a capacitor element contained in the container, and a sealing body that seals the opening. The capacitor element includes an anode body provided with a dielectric layer on its surface, and a conductive polymer that covers a portion of the dielectric layer. The sealing body includes an elastic polymer. An antioxidant component is present in a space closed by the container and the sealing body. The antioxidant component includes a first antioxidant having no boiling point or a boiling point of 320° C. or higher.
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公开(公告)号：US20240312726A1
公开(公告)日：2024-09-19
申请号：US18546925
申请日：2022-02-24
Inventor： Tatsuji AOYAMA , Tomoyuki TASHIRO , Shumpei MATSUSHITA
CPC classification number: H01G9/008 , H01G9/0029 , H01G9/14
Abstract: An electrolytic capacitor including a plurality of anode bodies and cathode bodies, a plurality of anode tabs connected with the plurality of anode bodies, and an anode lead member connected to the plurality of anode tabs. The plurality of anode tabs include a first anode tab group and a second anode tab group. Each of the first and second anode tab group has a through hole Ha. The anode lead member includes a metal plate-shaped anode connection part, the anode connection part being connected to the first anode tab group and the second anode tab group. Each of the first and second node tab group is connected to the anode connection part using a first fixing structure. The first fixing structure is formed by a portion of the anode connection part extending through the through hole Ha and spreading out to form a crimping structure on the other side.
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