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公开(公告)号：US20200234856A1
公开(公告)日：2020-07-23
申请号：US16839141
申请日：2020-04-03
发明人： Yuichi HIRATA , Kengo MITO , Kojiro TOKIEDA
摘要： A thermistor element includes an element body made of ceramic and including first and second end surfaces opposite to each other and a peripheral surface located between the first end surface and the second end surface, first and second external electrodes respectively covering the first and second end surfaces and portion of the peripheral surface adjacent to the respective first and second end surfaces. The first and second external electrodes include electrode layers including an underlayer and a metal plating layer, the underlayer of the first external electrode includes, adjacent to or in a vicinity of the second external electrode, two second external electrode side corner portions that are thin and adjacent to each other, and the underlayer of the second external electrode includes, adjacent to or in a vicinity of the first external electrode, two first external electrode side corner portions that are thin and adjacent to each other.
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公开(公告)号：US20240304363A1
公开(公告)日：2024-09-12
申请号：US18667780
申请日：2024-05-17
发明人： Tomoya OOSHIMA , Yuuta HOSHINO , Koichi YAMADA , Kojiro TOKIEDA , Miki SASAKI
摘要： An electronic component that includes: a base body; a glass film covering an outer surface of the base body; and an external electrode on an outer surface of the glass film and having at least an underlayer electrode, wherein the glass film includes: a base portion containing silicon oxide and an oxide of one or more metal elements of an alkali metal and an alkaline earth metal; and a specific portion containing silicon oxide and an oxide of a same metal element as that of the base portion, and wherein a content ratio of the same metal element in the specific portion is smaller than a content ratio of the one or more metal elements in the base portion.
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公开(公告)号：US20240096524A1
公开(公告)日：2024-03-21
申请号：US18523992
申请日：2023-11-30
发明人： Kojiro TOKIEDA , Hideyuki SUZUKI , Koichi YAMADA , Miki SASAKI
CPC分类号： H01C1/1413 , H01C1/1406 , H01C1/142 , H01C7/021 , H01C7/041 , H01C7/10 , H01G4/2325 , H01G4/30
摘要： An electronic component includes a ceramic body, and an external electrode on the ceramic body, the external electrode includes a base layer continuously covering an end surface of the ceramic body and a portion of a side surface bordering the end surface, and a plating layer covering the base layer, the ceramic body includes a recess open on the side surface, an opening of the recess includes a pair of edges, one edge of the opening is located within a covered region on the side surface covered with the base layer, and the other edge of the opening is spaced away from the covered region.
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公开(公告)号：US20170271056A1
公开(公告)日：2017-09-21
申请号：US15611826
申请日：2017-06-02
发明人： Yuichi HIRATA , Noboru FURUKAWA , Yasuo SASAKI , Kiyohiro KOTO , Kojiro TOKIEDA , Yukiko UEDA
IPC分类号： H01C7/04 , H01C1/142 , H01C17/28 , H01C17/245
CPC分类号： H01C7/041 , H01C1/142 , H01C1/148 , H01C7/18 , H01C17/245 , H01C17/281
摘要： A method of manufacturing an electronic component includes manufacturing a ceramic element including one pair of end surfaces and four side surfaces, forming external electrodes at both end portions of the ceramic element, measuring an initial characteristic value, determining any side surface to be machined among the four side surfaces and then determining, based on stored data, an amount of machining to be performed on the side surface to be machined, and machining, by the determined machining amount, the side surface of the ceramic element, which is determined to be machined, to be flush or substantially flush with the external electrodes.
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