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公开(公告)号：US11705278B2
公开(公告)日：2023-07-18
申请号：US17235791
申请日：2021-04-20
CPC分类号： H01G4/012 , H01G2/065 , H01G4/008 , H01G4/1218 , H01G4/30
摘要： A multi-layer ceramic electronic component includes a ceramic body and an external electrode. The ceramic body includes an end surface facing in a first direction, and internal electrodes exposed from the end surface and laminated in a second direction orthogonal to the first direction. The external electrode is provided on the end surface and includes two protrusions that are formed along two peripheral portions of the end surface and protrude in the first direction, the two peripheral portions being disposed in a third direction orthogonal to the first direction and the second direction.
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公开(公告)号：US10818438B2
公开(公告)日：2020-10-27
申请号：US15653227
申请日：2017-07-18
发明人： So Sato , Yoshiaki Iijima , Takashi Sasaki
摘要： In an embodiment, a multilayer ceramic capacitor 10 has supplementary dielectric layers 11d, each having a first cover part 11d1 that covers the space between two first base conductor films 11c on each of both height-direction faces, and second cover parts 11d2 that connect to the first cover part 11d1 and also cover parts of the first base conductor films 11c, respectively, in the length direction. External electrodes 12, 13 each have a second base conductor film 12a, 13a attached to a one length-direction face and to one length-direction edges of two first base conductor films 11c on the respective height-direction faces, and a surface conductor film 12b, 13b attached continuously to the surface of the second base conductor film 12a, 13a and also to the parts of the surfaces of the two first base conductor films 11c not covered by the second cover parts 11d2.
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公开(公告)号：US10726993B2
公开(公告)日：2020-07-28
申请号：US15782592
申请日：2017-10-12
发明人： So Sato , Yoshiaki Iijima , Takashi Sasaki
摘要： In an embodiment, a multilayer ceramic capacitor 10 includes: a first external electrode 12 having a first part 12a provided on one height-direction face, and a second part 12b provided on the other height-direction face, of the capacitor body 11; and a second external electrode 13 having a first part 13a provided on one height-direction face, and a second part 13b provided on the other height-direction face, of the capacitor body 11. In addition, the reference length L1a of the first part 12a, and the reference length L1b of the second part 12b, of the first external electrode 12 satisfy the relational expression “L1a>L1b,” while the reference length L2a of the first part 13a, and the reference length L2b of the second part 13b, of the second external electrode 13 satisfy the relational expression “L2a
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公开(公告)号：US10593479B2
公开(公告)日：2020-03-17
申请号：US16134815
申请日：2018-09-18
发明人： Takashi Sasaki
摘要： In an exemplary embodiment, each of external electrodes 12 of a multilayer ceramic capacitor 10 continuously has a first planar part 12a present on each end face of a capacitor body 11 in a first direction d1, a second planar part 12b present on one end face of the capacitor body 11 in a third direction d3, and auxiliary planar parts 12c present on both end faces of the capacitor body 11 in a second direction d2. A maximum third-direction dimension D3 [12c] of each of the auxiliary planar parts 12c is smaller than a third-direction dimension D3 [12a] of the first planar part 12a, while a first-direction dimension D1 [12c] of each of the auxiliary planar parts 12c is smaller than a first-direction dimension D1 [12b] of the second planar part 12b.
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公开(公告)号：US10262798B2
公开(公告)日：2019-04-16
申请号：US15523246
申请日：2015-09-10
发明人： Takashi Sasaki
摘要： In an embodiment of a multilayer electronic component, one main electrode part 12a of the first external electrode 12 present on one height-direction face of the capacitor body 11 of the multilayer capacitor is partially opposed to the other main electrode part 13a of the second external electrode 13 present on the other height-direction face, while one main electrode part 13a of the second external electrode 13 present on one height-direction face of the capacitor body 11 is partially opposed to the other main electrode part 12a of the first external electrode 12 present on the other height-direction face of the capacitor body 11, and margin areas MR1 to MR4 of roughly belt shape exist between each of the opposing areas OR and each of the edges on both height-direction faces of the capacitor body 11.
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公开(公告)号：US11515095B2
公开(公告)日：2022-11-29
申请号：US17170675
申请日：2021-02-08
发明人： Takashi Sasaki
摘要： A multi-layer ceramic electronic component includes: a ceramic body including first and second internal electrodes laminated in a first axis direction, first and second main surfaces facing in the first axis direction, and first and second end surfaces facing in a second axis direction orthogonal to the first axis, the first and second internal electrodes being drawn to those end surfaces; a first external electrode covering the first end surface and extending to the first main surface; and a second external electrode covering the second end surface and extending to the first main surface. Each external electrode includes a first region including a first outermost layer mainly containing tin and extending from the end surface to the first main surface, and a second region free from an outermost layer mainly containing tin and disposed adjacent to the first region in the first axis direction on the end surface.
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公开(公告)号：US10535467B2
公开(公告)日：2020-01-14
申请号：US16059712
申请日：2018-08-09
摘要： There is provided a multi-layer ceramic electronic component includes a ceramic body, an end external electrode unit, a side face external electrode unit. The ceramic body includes a pair of end faces, a pair of first side faces, and a pair of second side faces all of which are faced each other, respectively. The ceramic body includes a plurality of ceramic layers and an internal electrode unit. A plurality of the ceramic layers extend along a pair of the first side faces, and are laminated along a pair of the second side faces. The internal electrode unit includes first and second internal electrodes disposed alternately between a plurality of the ceramic layers, the first internal electrodes are drawn to both ends of a pair of the end faces, and the second internal electrodes are dawn to both ends of a pair of the second side faces. The end external electrode unit is connected to the first internal electrodes. The side face external electrode unit goes around from one of a pair of the first and second side faces to the other and are connected directly or indirectly each other at the other. There is also provided a method of producing the same.
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公开(公告)号：US10403438B2
公开(公告)日：2019-09-03
申请号：US15653235
申请日：2017-07-18
发明人： So Sato , Yoshiaki Iijima , Takashi Sasaki
摘要： In an embodiment, a multilayer ceramic capacitor 10 has supplementary dielectric layers 11d covering the spaces between two first base conductor films 11c on both height-direction faces of a capacitive element 11′, respectively, in such a way that clearances CL are left between the first base conductor films 11c and the supplementary dielectric layers 11d in the length direction. External electrodes 12, 13 each have a second base conductor film 12a, 13a and a surface conductor film 12b, 13b, and the wraparound locations 12b1, 13b1 of each surface conductor film 12b, 13b have insertion parts 12b2, 13b2 that fill in the clearances CL. The multilayer ceramic capacitor can mitigate deterioration in moisture resistance.
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公开(公告)号：US11929210B2
公开(公告)日：2024-03-12
申请号：US17696651
申请日：2022-03-16
摘要： A multi-layer ceramic electronic component includes: a ceramic body including a main surface, an end surface, and a side surface respectively perpendicular to a first axis, a second axis, and a third axis orthogonal to one another, a top portion that connects the main surface, the end surface, and the side surface to one another, and a plurality of internal electrodes laminated in a direction of the first axis; and an end external electrode including a corner portion located on the top portion, a base portion that covers the end surface and extends from the end surface to the main surface and the side surface, and a protrusion that protrudes from the base portion in a thickness direction, the protrusion including an L-shaped main surface protrusion located on the main surface and extending in directions of the second axis and the third axis from the corner portion.
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公开(公告)号：US11688556B2
公开(公告)日：2023-06-27
申请号：US17225444
申请日：2021-04-08
摘要： A ceramic electronic device includes: a multilayer chip in which dielectric layers are stacked, the multilayer chip having two end faces, an upper face, a lower face and two side faces; a plurality of internal electrode layers that are provided inside of the multilayer chip; and a pair of external electrodes that are provided on the two end faces and are connected to the plurality of internal electrode layers, wherein each of the pair of external electrodes has a smaller thickness in a region not connected to the plurality of internal electrode layers, has an inwardly inflected point as viewed toward the plurality of internal electrode layers, and has a larger thickness in a region connected to the plurality of internal electrode layers, as measured in a direction perpendicular to the corresponding end face.
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