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公开(公告)号:US20210005899A1
公开(公告)日:2021-01-07
申请号:US17028009
申请日:2020-09-22
Inventor: Kosuke YAMAUCHI , Takehito GOTO , Tomoya KAMATA , Yuichi MIKAMI , Tomohiro KUROHA , Atsuo OKAICHI , Yoichiro TSUJI , Yuji OKUYAMA
IPC: H01M4/90 , C01G25/00 , H01M8/1226 , C01F11/00 , H01M4/86 , H01M8/1213 , H01M8/1246 , G01N27/407 , H01M8/0612 , H01M8/1253
Abstract: A membrane electrode assembly of an electrochemical device includes a proton conductive solid electrolyte membrane and an electrode including Ni and an electrolyte material which contains as a primary component, at least one of a first compound having a composition represented by BaZr1-x1M1x1O3 (M1 represents at least one element selected from trivalent elements each having an ion radius of more than 0.720 A° to less than 0.880 A°, and 0
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公开(公告)号:US20240038452A1
公开(公告)日:2024-02-01
申请号:US18486008
申请日:2023-10-12
Inventor: Hisanori MASHIKO , Hideaki ADACHI , Michio SUZUKA , Takehito GOTO , Ryosuke KIKUCHI , Manabu KANOU
CPC classification number: H01G9/15 , H01G9/07 , H01G9/048 , H01G9/14 , H01G2009/05
Abstract: A dielectric of the present disclosure includes a tantalum compound containing fluorine and oxygen and being amorphous, and is advantageous in terms of achieving a high dielectric constant.
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公开(公告)号:US20250087426A1
公开(公告)日:2025-03-13
申请号:US18960931
申请日:2024-11-26
Inventor: Takehito GOTO , Naoya KITAMURA , Manabu KANOU , Ryosuke KIKUCHI
Abstract: A capacitor includes a metallic tantalum, an electric conductor, and an oxidized tantalum film. The oxidized tantalum film is disposed between the metallic tantalum and the electric conductor, where the oxidized tantalum film is in contact with the metallic tantalum. The oxidized tantalum film includes a first portion containing fluorine, and a second portion. The second portion is located closer to the metallic tantalum than the first portion in a thickness direction of the oxidized tantalum film. And a fluorine concentration at the second portion is lower than a fluorine concentration at the first portion.
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