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公开(公告)号：US20240347277A1
公开(公告)日：2024-10-17
申请号：US18757900
申请日：2024-06-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuhiro NISHIBAYASHI
CPC classification number: H01G4/30 , H01G4/008 , H01G4/1227
Abstract: An multilayer ceramic capacitor includes external electrodes including metal layers on first and second end surfaces so as to cover internal electrodes extending to the first and second end surfaces, respectively, glass films on the first and second end surfaces, adjacent to the metal layers and extending around the metal layers, fired layers including glass and metal, and covering the metal layers, and plating films covering the fired layers. The fired layers include voids including plating material in at least a portion thereof.
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公开(公告)号：US20240371572A1
公开(公告)日：2024-11-07
申请号：US18773739
申请日：2024-07-16
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuhiro NISHIBAYASHI
Abstract: A multilayer ceramic capacitor includes external electrodes including metal layers on first and second end surfaces and covering internal electrodes extending to the first and second end surfaces, respectively, glass films on the first and second end surfaces, adjacent to the metal layers and extending around the metal layers, fired layers including glass and metal, and covering the metal layers, and plating films covering the fired layers. A thickness of the metal layer is between about 0.1 μm and about 15.0 μm inclusive, and a thickness of the fired layer is between about 0.1 μm and about 1.0 μm inclusive.
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公开(公告)号：US20250029783A1
公开(公告)日：2025-01-23
申请号：US18905344
申请日：2024-10-03
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuhiro NISHIBAYASHI , Yuko KAWASAKI
Abstract: A multilayer ceramic capacitor includes end-surface-exposure internal electrodes, lateral-surfaces-exposure internal electrodes, first dielectric layers each having the end-surface-exposure internal electrode thereon, and second dielectric layers each having the lateral-surface-exposure internal electrode thereon. At least one of each first and second dielectric layer includes an auxiliary internal electrode on a portion adjacent to one surface at which the internal electrode is not exposed. The auxiliary internal electrode is spaced apart from the internal electrode, is exposed at the one surface, and is opposed to a lead-out portion of the internal electrode different from and adjacent to the internal electrode. A through hole penetrates through the auxiliary internal electrode and includes a same dielectric as that of the dielectric layers to connect the dielectric layers in contact with the auxiliary internal electrode.
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公开(公告)号：US20240242887A1
公开(公告)日：2024-07-18
申请号：US18621196
申请日：2024-03-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuhiro NISHIBAYASHI , Yuko KAWASAKI
Abstract: When a multilayer ceramic capacitor is viewed as a section of a central portion in a width direction cut parallel or substantially parallel or substantially parallel or substantially parallel to a side surface, in an internal electrode layer in a central portion in a lamination direction and including an extremity spaced apart from an end surface, any one of five segments of the internal electrode layer that are horizontally and successively positioned from the extremity has a length greater than about 0.2 times of an average length of ten segments of the internal electrode layer that are horizontally and successively positioned in a central portion in a length direction.
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公开(公告)号：US20250029789A1
公开(公告)日：2025-01-23
申请号：US18905342
申请日：2024-10-03
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuhiro NISHIBAYASHI , Yuko KAWASAKI
Abstract: A multilayer ceramic capacitor includes an inner layer portion including a first-main-surface-side region, a second-main-surface-side region, and a central region between the first-main-surface-side region and the second-main-surface-side region. In the central region, dielectric layers each between internal electrodes adjacent to each other in a lamination direction and exposed at a same surfaces are in contact with the external electrode at contact portions, and an average of thicknesses of the dielectric layers at the contact portions is referred to as an average thickness Lc. In at least one of the first-main-surface-side region or the second-main-surface-side region, dielectric layers each between internal electrodes adjacent to each other in the lamination direction and exposed at the same surface are in contact with the external electrodes at contact portions, and a thickness of the dielectric layer at each contact portion is referred to as a thickness Ls and Ls
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Patent Agency Ranking
公开(公告)号：US20240266110A1
公开(公告)日：2024-08-08
申请号：US18621165
申请日：2024-03-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuhiro NISHIBAYASHI
CPC classification number: H01G4/012 , H01G4/1227 , H01G4/248 , H01G4/30
Abstract: A multilayer ceramic capacitor includes first and second internal electrode layers extending in a length direction and a width direction. Coverage ratios in regions R11 and R12 are higher than a coverage ratio in a region R15, and/or coverage ratios in regions R13 and R14 are higher than the coverage ratio in the region R15.
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公开(公告)号：US20230282418A1
公开(公告)日：2023-09-07
申请号：US18107539
申请日：2023-02-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuhiro NISHIBAYASHI
Abstract: A three-terminal multilayer ceramic capacitor includes a first internal electrode layer including a first counter electrode portion opposite to a second internal electrode layer, a first drawn electrode portion extending from the first counter electrode portion to a first end surface, and a second drawn electrode portion extending from the first counter electrode portion to a second end surface, the second internal electrode layer includes a second counter electrode portion opposite to the first internal electrode layer, a third drawn electrode portion extending from the second counter electrode portion to a first side surface, and a fourth drawn electrode portion extending from the second counter electrode portion to a second side surface. The first drawn electrode portion is bent and faces a first or second principal surface. The second drawn electrode portion is bent and faces the first or second principal surface.
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8.发明申请公开(公告)号：US20160049253A1
公开(公告)日：2016-02-18
申请号：US14813204
申请日：2015-07-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yohei MUKOBATA , Takashi SAWADA , Kazuhiro NISHIBAYASHI
Abstract: In a multilayer capacitor, both a minimum distance in a thickness direction between a first effective portion of a first inner electrode and a second main surface and a minimum distance in the thickness direction between a second effective portion of a second inner electrode and the second main surface are shorter than any of a dimension in the thickness direction of a first extending portion of the first inner electrode, a dimension in the thickness direction of a second extending portion of the first inner electrode and a dimension in the thickness direction of the third extending portion of the second inner electrode.
Abstract translation: 在层叠电容器中，在第一内部电极的第一有效部分和第二主要表面之间的厚度方向上的最小距离和第二内部电极的第二有效部分与第二主体之间的厚度方向上的最小距离 表面比第一内部电极的第一延伸部分的厚度方向上的尺寸小，第一内部电极的第二延伸部分的厚度方向上的尺寸和第三延伸部分的厚度方向上的尺寸 第二内部电极的一部分。
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公开(公告)号：US20240395465A1
公开(公告)日：2024-11-28
申请号：US18792625
申请日：2024-08-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuhiro NISHIBAYASHI , Yuko KAWASAKI , Satoshi ISHITOBI
Abstract: A multilayer ceramic capacitor includes a multilayer body including internal electrode layers and dielectric layers alternately laminated, and external electrodes on at least a pair of opposite outer surfaces of the multilayer body and extending in a lamination direction. Each internal electrode layer includes a counter portion and a lead-out portion extending from the counter portion to the external electrode, and the counter portion of one of a pair of the internal electrode layers adjacent to each other in the lamination direction overlaps with the counter portion of each of a remainder of the internal electrode layers. The counter portion includes on edges thereof a convex-concave portion including a convexity and a concavity alternating with each other, the convexity bending toward the outer surface adjacent to the edge, the concavity bending away from the outer surface adjacent to the edge.
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公开(公告)号：US20240355550A1
公开(公告)日：2024-10-24
申请号：US18758027
申请日：2024-06-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuhiro NISHIBAYASHI , Yuki KOYAMA
CPC classification number: H01G4/30 , H01G4/008 , H01G4/1227 , H01G4/1236 , H01G4/224 , H01G4/228 , H01G4/35
Abstract: In a multilayer ceramic capacitor, a dimension of each of first and second extension portions in a width direction is less than a dimension of a first counter electrode portion in the width direction, and a dimension from a side of each of the first and second extension portions near a first lateral surface to the first lateral surface in the width direction and a dimension from a side of each of the first and second extension portions near a second lateral surface to the second lateral surface in the width direction are each greater than the dimension of each of the first and second extension portions in the width direction.
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