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公开(公告)号：US10755865B2
公开(公告)日：2020-08-25
申请号：US16191004
申请日：2018-11-14
Inventor： Daisuke Kubo , Yoshinori Takamuku , Doyu Hachisu
Abstract: An electrolytic capacitor includes a capacitor element; a bottomed case that houses the capacitor element; a sealing member that seals an opening of the bottomed case; a tab terminal connected to the capacitor element and penetrating through the sealing member; and a resin layer that covers at least part of a main surface of the sealing member, the main surface being disposed outside the bottomed case. The tab terminal includes a first portion containing a first metal and a second portion containing a second metal. The resin layer is in contact with the first portion and the second portion. Linear expansion coefficient α1 of the first metal, linear expansion coefficient α2 of the second metal, and linear expansion coefficient αr of the resin layer satisfy a relation of α1
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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：US11945923B2
公开(公告)日：2024-04-02
申请号：US17427530
申请日：2020-01-29
Inventor： Daisuke Kubo , Hiroyuki Arima , Tomoyuki Tashiro , Kazuhiro Takatani , Kenta Chashiro , Shumpei Matsushita
CPC classification number: C08J5/18 , C08J5/045 , C08J5/046 , H01G9/0032 , H01G9/02 , C08J2365/00 , C08J2401/02 , C08J2433/26 , C08J2467/02 , C08J2477/00
Abstract: Disclosed is a method for producing an electrolytic capacitor, the method including the steps of preparing an anode foil that includes a dielectric layer, a cathode foil, and a fiber structure; preparing a conductive polymer dispersion liquid that contains a conductive polymer component and a dispersion medium; producing a separator by applying the conductive polymer dispersion liquid to the fiber structure and then removing at least a portion of the dispersion medium; and producing a capacitor element by sequentially stacking the anode foil, the separator, and the cathode foil. The dispersion medium contains water. The fiber structure contains a synthetic fiber in an amount of 50 mass % or more. The fiber structure has a density of 0.2 g/cm3 or more and less than 0.45 g/cm3.
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公开(公告)号：US11594380B2
公开(公告)日：2023-02-28
申请号：US16682212
申请日：2019-11-13
Inventor： Daisuke Kubo , Doyu Hachisu
Abstract: An electrolytic capacitor includes a capacitor element, a case, and a sealing member. The case has an opening and houses the capacitor element. The sealing member seals the opening. The sealing member includes an elastic member that is fit in the opening. The elastic member includes a polymer component and a particle component. The polymer component includes at least butyl rubber. The particle component includes at least particles of kaolin. An average particle size of the particles of kaolin is less than or equal to 4 μm.
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公开(公告)号：US10522297B2
公开(公告)日：2019-12-31
申请号：US15852315
申请日：2017-12-22
Inventor： Daisuke Kubo , Masayuki Takahashi , Yukihiro Shimasaki , Tomoyuki Tashiro , Tatsuji Aoyama
Abstract: A power storage device has a power storage element and an electrolytic solution. The power storage element includes an anode body, a cathode body opposed to the anode body, and a separator interposed between the anode body and the cathode body. The separator includes a separator base material and a conductive polymer deposited on the separator base material. The power storage element is impregnated with the electrolytic solution. The separator has a first surface layer, which includes a first surface opposed to the anode body, and a second surface layer, which includes a second surface opposed to the cathode body. An amount of the conductive polymer deposited in a first separator half body, which is a part from a center of the separator to the first surface, is greater than an amount of the conductive polymer deposited in a second separator half body, which is a part from the center of the separator to the second surface.
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Patent Agency Ranking
公开(公告)号：US12176157B2
公开(公告)日：2024-12-24
申请号：US17427534
申请日：2020-01-29
Inventor： Daisuke Kubo , Shumpei Matsushita , Kenta Chashiro , Hiroyuki Arima
Abstract: A method for producing an electrolytic capacitor, the method including steps of: preparing an electrode foil; preparing a first conductive polymer dispersion containing a first conductive polymer component and a first dispersion medium; forming a first conductive polymer layer containing the first conductive polymer component, by applying the first conductive polymer dispersion to a surface of the electrode foil by a coating method, and then at least partially removing the first dispersion medium; and fabricating a capacitor element, using the electrode foil having the first conductive polymer layer.
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公开(公告)号：US11776762B2
公开(公告)日：2023-10-03
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：US11769638B2
公开(公告)日：2023-09-26
申请号：US16808321
申请日：2020-03-03
Inventor： Daisuke Kubo , Doyu Hachisu , Nobuyuki Matsuzawa , Miyoko Masuda
IPC: H01G9/10 , H01G9/008 , C08K3/34 , C08K5/13 , H01G9/00 , H01M10/0525 , H01M10/34 , H01M50/186 , H01M50/179 , H01M50/193 , H01G9/035
CPC classification number: H01G9/10 , C08K3/34 , C08K5/13 , H01G9/008 , H01G9/0032 , H01M10/0525 , H01M10/345 , H01M50/179 , H01M50/186 , H01M50/193 , H01G9/035
Abstract: A power storage device includes an electricity storage element, a case, and a sealing member which includes an elastic member. The elastic member contains an elastic polymer and a hindered phenol compound. The hindered phenol compound having a phenol skeleton includes a first hindered group and a second hindered group. The first hindered group is bonded to a first substitution site of the phenol skeleton, and the second hindered group is bonded to a second substitution site of the phenol skeleton. Each of the first substitution site and second substitution site is adjacent to a substitution site of the phenol skeleton to which a phenolic hydroxy group is bonded. One of one or more tertiary carbon atoms in the first hindered group and one of one or more tertiary carbon atoms in the second hindered group are bonded to the first substitution site and the second substitution site, respectively.
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公开(公告)号：US11749464B2
公开(公告)日：2023-09-05
申请号：US17262929
申请日：2019-07-26
Inventor： Yuichiro Tsubaki , Daisuke Kubo , Tatsuji Aoyama
Abstract: An electrolytic capacitor according to the present disclosure includes an anode body, a cathode body, a solid electrolyte, and a liquid component. The anode body has a surface provided with a dielectric layer. The solid electrolyte is in contact with the dielectric layer, is disposed between the anode body and the cathode body and contains conductive polymer. The liquid component is in contact with the dielectric layer and the solid electrolyte and contains a solvent and an acid component. The acid component contains a first polymer acid component including a sulfonic acid group or a carboxylic acid group.
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公开(公告)号：US11482383B2
公开(公告)日：2022-10-25
申请号：US16643455
申请日：2018-08-31
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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