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公开(公告)号：US10388463B2
公开(公告)日：2019-08-20
申请号：US15812348
申请日：2017-11-14
发明人： Youichirou Uka , Katsuya Miyahara , Hiroshi Kojima
IPC分类号： H01G9/028 , H01G9/15 , C08K3/04 , C08L33/14 , C08G73/02 , H01G9/00 , H01G9/042 , H01G9/048 , H01G9/04
摘要： An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a conductive polymer layer covering at least a part of the dielectric layer. The conductive polymer layer includes a conductive polymer and a polymer dopant. The polymer dopant includes a first copolymer including: (A) a first unit derived from a first monomer having a sulfonate group; (B) a second unit derived from a second monomer having a carboxy group; and (C) a third unit derived from a third monomer having a hydroxy group.
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公开(公告)号：US10325728B2
公开(公告)日：2019-06-18
申请号：US15790153
申请日：2017-10-23
发明人： Youichirou Uka , Katsuya Miyahara , Hiroshi Kojima
摘要： An electrolytic capacitor includes an anode body having a dielectric layer, a first conductive polymer layer covering at least a part of the dielectric layer, and a second conductive polymer layer covering at least a part of the first conductive polymer layer. The first conductive polymer layer includes a first conductive polymer and a first polymer dopant having a sulfonate group. The second conductive polymer layer includes a second conductive polymer and a second polymer dopant having a sulfonate group. A polymerization degree of the first conductive polymer is lower than a polymerization degree of the second conductive polymer.
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公开(公告)号：US10304634B2
公开(公告)日：2019-05-28
申请号：US15790145
申请日：2017-10-23
发明人： Youichirou Uka , Katsuya Miyahara , Hiroshi Kojima
摘要： An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, a first conductive polymer layer covering at least a part of the dielectric layer, and a second conductive polymer layer covering at least a part of the first conductive polymer layer. The first conductive polymer layer includes a first conductive polymer. The second conductive polymer layer includes a second conductive polymer. The first conductive polymer layer and the second conductive polymer layer each further include a first polymer dopant having a sulfonation degree of S1. At least one of the first conductive polymer layer and the second conductive polymer layer further includes a second polymer dopant having a sulfonation degree of S2. The sulfonation degree of S1 and the sulfonation degree of S2 satisfy a relation of S1
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公开(公告)号：US11189430B2
公开(公告)日：2021-11-30
申请号：US16618134
申请日：2018-05-07
发明人： Hitoshi Fukui , Hiroshi Kojima , Ai Makino
摘要： An electrolytic capacitor includes an anode body, a dielectric layer disposed on the anode body, and a solid electrolyte layer disposed on the dielectric layer. The solid electrolyte layer includes a self-doped conductive polymer and an organic alkali.
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公开(公告)号：US11189429B2
公开(公告)日：2021-11-30
申请号：US15733097
申请日：2018-12-21
发明人： Hitoshi Fukui , Ai Makino , Hiroshi Kojima
摘要： A method for manufacturing an electrolytic capacitor includes: preparing an anode body that includes a dielectric layer, and forming a solid electrolyte layer on the dielectric layer. The forming of the solid electrolyte layer includes: forming a first conductive polymer layer on the dielectric layer, applying a first treatment liquid to the first conductive polymer layer, and forming a second conductive polymer layer after the applying of the first treatment liquid. The first conductive polymer layer includes a first conductive polymer. The first treatment liquid contains a first compound and a solvent. The first compound has a skeleton of naphthalene or anthraquinone, and includes at least one SO3-containing group bonded to the skeleton. The at least one SO3-containing group is at least one selected from a group consisting of a sulfonic acid group and a sulfonate group.
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公开(公告)号：US10600579B2
公开(公告)日：2020-03-24
申请号：US15701557
申请日：2017-09-12
发明人： Youichirou Uka , Katsuya Miyahara , Hiroshi Kojima
摘要： An electrolytic capacitor includes an anode body, a first conductive polymer layer, and a second conductive polymer layer. The anode body includes a dielectric layer. The first conductive polymer layer covers at least a part of the dielectric layer. The second conductive polymer layer covers at least a part of the first conductive polymer layer. The first conductive polymer layer includes a first conductive polymer. The second conductive polymer layer includes a second conductive polymer. At least one of the first conductive polymer layer and the second conductive polymer layer further includes a hydroxy compound. The hydroxy compound has two or more alcoholic hydroxy groups or two or more phenolic hydroxy groups, and has a melting point ranging from 40° C. to 150° C., inclusive.
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公开(公告)号：US11315739B2
公开(公告)日：2022-04-26
申请号：US15733095
申请日：2018-12-21
发明人： Hitoshi Fukui , Ai Makino , Hiroshi Kojima
摘要： An electrolytic capacitor includes an anode body, a dielectric layer disposed on a surface of the anode body, and a solid electrolyte layer disposed on a surface of the dielectric layer. The solid electrolyte layer includes a conductive polymer and a first compound. The first compound has a naphthalene skeleton, and includes at least one COOM1 group and at least one sulfonate group. The at least one sulfonate group is bonded to the naphthalene skeleton. The at least one COOM1 group is bonded to the naphthalene skeleton, where M1 is a hydrogen atom, a metal atom, or an onium group.
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公开(公告)号：US11152158B2
公开(公告)日：2021-10-19
申请号：US16430216
申请日：2019-06-03
发明人： Hitoshi Fukui , Hiroshi Kojima
摘要： An electrolytic capacitor includes an anode body, a dielectric layer disposed on the anode body, and a solid electrolyte layer disposed on the dielectric layer. The solid electrolyte layer includes a conductive polymer, a polyanion, and an alkali component. The alkali component includes two or more kinds of alkali compound.
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公开(公告)号：US10685787B2
公开(公告)日：2020-06-16
申请号：US15702655
申请日：2017-09-12
发明人： Youichirou Uka , Katsuya Miyahara , Hiroshi Kojima
摘要： An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a conductive polymer layer covering at least a part of the dielectric layer. The conductive polymer layer includes a conductive polymer and a polymer dopant. The polymer dopant includes a copolymer that includes a first monomer unit and a second monomer unit. The first monomer unit has a sulfonate group. Time second monomer unit has a functional group represented by a formula (i); —CO—R1—COOH (where R1 represents an aliphatic hydrocarbon group having 1 to 8 carbon atoms, an aromatic group, or a divalent group —OR2—, R2 representing an aliphatic hydrocarbon group having 1 to 8 carbon atoms or an aromatic group).
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