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公开(公告)号：US20240387116A1
公开(公告)日：2024-11-21
申请号：US18786069
申请日：2024-07-26
Inventor： Miwa OGAWA , Naomi KURIHARA
Abstract: An electrode foil for an electrolytic capacitor includes: an anode body that contains a valve action metal; a first dielectric layer that covers at least a part of the anode body; and a second dielectric layer that covers at least a part of the first dielectric layer. The second dielectric layer has a higher dielectric constant than the first dielectric layer, and a thickness T2 of the second dielectric layer is greater than a thickness T1 of the first dielectric layer. The first dielectric layer is a layer that suppresses oxygen diffusion from the second dielectric layer to the anode body.
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公开(公告)号：US20230360864A1
公开(公告)日：2023-11-09
申请号：US18246091
申请日：2021-09-27
Inventor： Mitsuhisa YOSHIMURA , Naomi KURIHARA , Miwa OGAWA , Akihiro YAMAGUCHI
CPC classification number: H01G13/00 , H01G9/07 , H01G9/0032
Abstract: A film-forming device disclosed is a film-forming device for forming a film on a metal foil having a porous portion on a main surface thereof by a gas phase method, and includes a film-forming region in which the film is formed on the metal foil, conveyors to provided downstream of the film-forming region and drawing the metal foil from the film-forming region, and a control unit that controls the stress applied to the metal foil from the conveyors to 21 N/mm2 or less. This provides a film-forming device which does not cause defects easily on a film-forming target metal foil.
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Patent Agency Ranking
公开(公告)号：US20240395471A1
公开(公告)日：2024-11-28
申请号：US18696846
申请日：2022-09-28
Inventor： Mitsuhisa YOSHIMURA , Miwa OGAWA , Naomi KURIHARA
Abstract: An electrode foil for an electrolytic capacitor includes: a metal foil with a first main surface and a second main surface that is opposite to the first main surface, having a first porous portion on the first main surface side and a second porous portion on the second main surface side; a first dielectric layer that covers a surface of the first porous portion; and a second dielectric layer that covers a surface of the second porous portion. A thickness F1 of the first dielectric layer and a thickness F2 of the second dielectric layer satisfy the relationship 0.75≤F1/F2≤0.97.
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公开(公告)号：US20240428997A1
公开(公告)日：2024-12-26
申请号：US18824492
申请日：2024-09-04
Inventor： Naomi KURIHARA , Akihiro YAMAGUCHI , Mitsuhisa YOSHIMURA , Miwa OGAWA
Abstract: A film production method for producing a layer containing a metal oxide, the film production method including: a heating step of heating a metal foil containing a first metal by bringing a part of the metal foil into contact with at least one heat generator; a first contact step of letting first gas containing a second metal to be in contact with both surfaces of the metal foil in a state where the part of the metal foil is supported; and a second contact step of letting second gas containing an oxidant to be in contact with the both surfaces of the metal foil in a state where the part of the metal foil is supported.
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公开(公告)号：US20230335341A1
公开(公告)日：2023-10-19
申请号：US18042435
申请日：2021-08-18
Inventor： Mitsuhisa YOSHIMURA , Masami TSUBAKI , Naomi KURIHARA , Miwa OGAWA
CPC classification number: H01G9/055 , H01G9/0029 , H01G9/045
Abstract: An electrode foil for an electrolytic capacitor includes an anode body having a porous portion and a core part continuous with the porous portion, a dielectric layer covering a surface of a metal skeleton forming the porous portion, wherein an interface layer including a first element is present between the metal skeleton and the dielectric layer, and the first element is at least one selected from the group consisting of sulfur, nitrogen, and phosphorus.
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公开(公告)号：US20220262577A1
公开(公告)日：2022-08-18
申请号：US17661709
申请日：2022-05-02
Inventor： Mitsuhisa YOSHIMURA , Miwa OGAWA , Natsuyo SASADA , Tatsuji AOYAMA
Abstract: A cathode foil for electrolytic capacitors includes a metal porous part, a metal core part that is continuous with the metal porous part, and a coating film covering the metal porous part. Pores in the metal porous part are open at a first main surface of the cathode foil. The coating film is disposed in a region from the first main surface to a depth more than or equal to 10% of a thickness of the metal porous part in a thickness direction of the metal porous part.
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7.发明申请公开(公告)号：US20220148815A1
公开(公告)日：2022-05-12
申请号：US17434263
申请日：2019-10-30
Inventor： Mitsuhisa YOSHIMURA , Shosuke NAKANO , Hiroshi YOSHIDA , Masami TSUBAKI , Naomi KURIHARA , Miwa OGAWA
Abstract: An electrode foil for an electrolytic capacitor including a metal porous portion, and a metal core portion continuous to the metal porous portion. When the metal porous portion is equally divided in three in a thickness direction of the metal porous portion into a first region, a second region, and a third region sequentially from the metal core portion side, the first region has a porosity P1, the second region has a porosity P2, and the third region has a porosity P3, satisfying P1
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