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公开(公告)号：US10593486B2
公开(公告)日：2020-03-17
申请号：US15963233
申请日：2018-04-26
Inventor： Tatsuji Aoyama , Kazuhiro Takatani , Kazunari Imamoto , Yoshiaki Ishimaru
Abstract: An electrolytic capacitor includes a capacitor element, a solid electrolyte layer, an electrolyte solution. The capacitor element has an anode foil with a dielectric layer, and a cathode foil. The solid electrolyte layer is provided between the anode foil and the cathode foil. And the capacitor element is impregnated with the electrolyte solution. The cathode foil includes a covering layer that contains at least one metal selected from titanium and nickel or a compound of the at least one metal. And the solid electrolyte layer contains a conductive polymer, a polymer dopant, and a base component.
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公开(公告)号：US10563318B2
公开(公告)日：2020-02-18
申请号：US15724303
申请日：2017-10-04
Inventor： Yuichiro Tsubaki , Tatsuji Aoyama , Kazuyo Saito
IPC: C25D11/12 , H01G9/022 , C25D11/08 , H01G9/00 , H01G9/028 , H01G9/032 , H01G9/035 , H01G9/04 , H01G9/055 , H01G9/07 , H01G9/15
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 electrolyte solution. The solid electrolyte layer includes a π-conjugated conductive polymer. The electrolyte solution contains a solvent and a solute, and the solvent contains a glycol compound and a sulfone compound. A proportion of the glycol compound contained in the solvent is 10% by mass or more. A proportion of the sulfone compound contained in the solvent is 30% by mass or more. A total proportion of the glycol compound and the sulfone compound contained in the solvent is 70% by mass or more.
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公开(公告)号：US10535472B2
公开(公告)日：2020-01-14
申请号：US15915109
申请日：2018-03-08
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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公开(公告)号：US10431392B2
公开(公告)日：2019-10-01
申请号：US15841072
申请日：2017-12-13
Inventor： Daisuke Kubo , Masayuki Takahashi , Yukihiro Shimasaki , Tomoyuki Tashiro , Tatsuji Aoyama
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：US10431390B2
公开(公告)日：2019-10-01
申请号：US15702643
申请日：2017-09-12
Inventor： Yuichiro Tsubaki , Tatsuji Aoyama
Abstract: An electrolytic capacitor includes an anode body having a dielectric layer on a surface of the anode body, a cathode body, and an electrolytic solution interposed between the anode body and the cathode body. The electrolytic solution contains a first ester compound and a second ester compound. The first ester compound is a condensate of boric acid and a sugar alcohol. The second ester compound contains at least one condensate selected from the group consisting of a condensate of boric acid and a monool compound and a condensate of boric acid and a polyol compound excluding a sugar alcohol.
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Patent Agency Ranking
公开(公告)号：US10373763B2
公开(公告)日：2019-08-06
申请号：US15872948
申请日：2018-01-16
Inventor： Yuichiro Tsubaki , Tatsuji Aoyama
IPC: H01G9/035 , H01G9/022 , H01G11/54 , H01G11/58 , H01G11/62 , H01G9/028 , H01G9/008 , H01G9/025 , H01G9/07 , H01G9/145 , C08K5/053 , C08K5/092 , C08L71/02 , H01G9/00 , C08G61/12 , H01G9/15 , C09D165/00
Abstract: An electrolytic capacitor includes: an anode body having a dielectric layer; a solid electrolyte layer in contact with the dielectric layer; and an electrolytic solution. The electrolytic solution contains a solvent and a solute. The solvent contains a glycol compound. The solute contains a carboxylic acid component and a base component. A ratio of the carboxylic acid component in the solute is 200 parts by mass or more with respect to 100 parts by mass of the base component.
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37.发明授权Method of producing conductive polymer particle dispersion, and method of producing electrolytic capacitor using said conductive polymer particle dispersion 有权导电性高分子粒子分散液的制造方法以及使用该导电性高分子粒子分散液的电解电容器的制造方法公开(公告)号：US09472348B2
公开(公告)日：2016-10-18
申请号：US14859240
申请日：2015-09-18
Inventor： Kazuhiro Takatani , Tatsuji Aoyama
CPC classification number: H01G9/0036 , B01J39/20 , C08G61/126 , C08G2261/128 , C08G2261/1424 , C08G2261/18 , C08G2261/3223 , C08G2261/43 , C08G2261/794 , C08L65/00 , H01B1/12 , H01B1/20 , H01G9/0032 , H01G9/028 , H01G9/15 , H01G9/151 , C08L25/18
Abstract: A dispersion liquid including one of thiophene and derivatives thereof, a polyanion, and a solvent is prepared. Then, the dispersion liquid is mixed with an oxidizing agent so as to oxidatively polymerize the one of thiophene and derivatives thereof. During the oxidative polymerization, a temperature of the dispersion liquid is 35° C. or less and a dissolved oxygen concentration of the dispersion liquid is 7 ppm or less.
Abstract translation: 制备包括噻吩及其衍生物，聚阴离子和溶剂中的一种的分散液。 然后，将分散液与氧化剂混合，使噻吩及其衍生物中的一种氧化聚合。 在氧化聚合期间，分散液的温度为35℃以下，分散液的溶解氧浓度为7ppm以下。
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公开(公告)号：US12198867B2
公开(公告)日：2025-01-14
申请号：US18222132
申请日：2023-07-14
Inventor： Yuichiro Tsubaki , Tatsuji Aoyama
Abstract: A method for manufacturing an electrolytic capacitor of the present disclosure includes first to third steps. In the first step, a capacitor element is prepared that includes an anode body on which a dielectric layer is formed. In the second step, the capacitor element is impregnated with a first treatment solution containing at least a conductive polymer and a first solvent. In the third step, the capacitor element is, after the second step, impregnated with a second treatment solution that contains a polyol compound having 3 or more hydroxyl groups per molecule.
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公开(公告)号：US12183519B2
公开(公告)日：2024-12-31
申请号：US17929722
申请日：2022-09-05
Inventor： Yoshiaki Ishimaru , Takayuki Matsumoto , Tatsuji Aoyama
Abstract: A method for producing an electrolytic capacitor, the electrolytic capacitor including a capacitor element including an anode body and a cathode body each having a foil shape. The anode body includes a dielectric layer on a surface of the anode body. The method includes a step of forming a capacitor element precursor by winding or stacking a separator, the anode body, and the cathode body with the separator interposed between the anode body and the cathode body, a step of impregnating the capacitor element precursor with a treatment liquid containing an acid component, a solvent, and a conductive polymer component, a step of impregnating the capacitor element precursor with a liquid component after the step of impregnating the capacitor element precursor with the treatment liquid, and a step of forming the capacitor element by eluting the acid component into the liquid component.
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公开(公告)号：US12148579B2
公开(公告)日：2024-11-19
申请号：US18360528
申请日：2023-07-27
Inventor： Yuichiro Tsubaki , Tatsuji Aoyama , Kazuyo Saito , Yuji Otsuka
Abstract: An electrolytic capacitor includes a capacitor element and an electrolytic solution. The capacitor element includes: an anode body including a dielectric layer; a cathode body; and a solid electrolyte in contact with the dielectric layer. The electrolytic solution includes a solvent, a solute, and a polymer component. The solvent includes an ethylene glycol compound. The polymer component includes polyalkylene glycol. The polyalkylene glycol includes at least one of (i) a mixture of polyoxyethylene and polyoxypropylene and (ii) an oxyethylene-oxypropylene copolymer. In the polyalkylene glycol, a molar ratio m/n of oxyethylene units to oxypropylene units is greater than 1.
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