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

IPC: H01G4/30 ,  H01G4/008 ,  H01G4/12

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.

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

IPC: H01G4/30 ,  H01G4/01 ,  H01G4/12

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.

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

IPC: H01G4/012 ,  H01G4/232 ,  H01G4/30

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.

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

IPC: H01G4/248 ,  H01G4/12 ,  H01G4/30

CPC classification number: H01G4/248 ,  H01G4/30 ,  H01G4/12

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.

公开(公告)号：US20250118497A1

公开(公告)日：2025-04-10

申请号：US18979772

申请日：2024-12-13

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kazuhiro NISHIBAYASHI ,  Yuki KOYAMA

IPC: H01G4/30 ,  H01G4/008 ,  H01G4/012 ,  H01G4/12 ,  H01G4/232

Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric layers and first and second inner electrode layers. The first inner electrode layers include first counter electrode portions facing the second inner electrode layers and first extended portions extending from the first counter electrode portions to a first end surface. The second inner electrode layers include a second counter electrode portions opposing the first inner electrode layers and second extended portions extending from the second counter electrode portions to a first side surface. The first extended portions include a first connection portion connected to straddle at least two or more of the first extended portions in the lamination direction, between the first extended portions, and the second extended portions include a second connection portion connected to straddle at least two or more of the second extended portions in the lamination direction, between the second extended portions.

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

IPC: H01G4/30 ,  H01G4/012 ,  H01G4/12 ,  H01G4/232

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.

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

IPC: H01G4/30 ,  H01G4/008 ,  H01G4/12 ,  H01G4/224 ,  H01G4/228 ,  H01G4/35

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.

公开(公告)号：US20230238183A1

公开(公告)日：2023-07-27

申请号：US18070512

申请日：2022-11-29

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kazuhiro NISHIBAYASHI ,  Satoshi ISHITOBI ,  Takashi SAWADA ,  Yuko KAWASAKI

IPC: H01G4/248 ,  H01G4/30 ,  H01G4/008 ,  H01G4/12

CPC classification number: H01G4/248 ,  H01G4/30 ,  H01G4/008 ,  H01G4/1227

Abstract: A three-terminal multilayer ceramic capacitor includes at least one surface electrode layer on a surface of a second internal electrode layer connected to a lateral surface external electrode. The surface electrode layer includes at least one of Sn, In, Ga, Zn, Bi, Pb, Fe, V, Y or Cu, which is different from a main component of the second internal electrode layer.

公开(公告)号：US20200312562A1

公开(公告)日：2020-10-01

申请号：US16813789

申请日：2020-03-10

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kazuhiro NISHIBAYASHI ,  Yoshiyuki NOMURA ,  Naoto MURANISHI

IPC: H01G4/232

Abstract: A ceramic electronic component includes a ceramic main body in which dielectric layers and internal electrodes are laminated, the ceramic main body including a pair of principal surfaces, a pair of side surfaces, and a pair of end surfaces, the internal electrodes are exposed to the end surfaces, and an underlayer external electrode covers at least a portion of the end surface. When a section of the ceramic main body is viewed, the underlayer external electrode is discontinuously provided on the ceramic main body. The ceramic main body includes an exposed region partially exposed from the discontinuously provided underlayer external electrode, the exposed region is covered with a resin layer, and the underlayer external electrode is covered with a plating film.

公开(公告)号：US20250166926A1

公开(公告)日：2025-05-22

申请号：US19036138

申请日：2025-01-24

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kazuhiro NISHIBAYASHI

IPC: H01G4/30 ,  H01G4/012 ,  H01G4/12 ,  H01G4/232

Abstract: A multilayer ceramic electronic component includes a ceramic element body including first and second internal electrodes, first and second main surfaces, first and second lateral surfaces, and first and second end surfaces, and first and second external electrodes respectively on the first and second end surfaces. The first and second external electrodes each include base external electrodes, a resin layer, and at least one plated external electrode layer. The base external electrodes are discontinuously provided on the ceramic element body. The ceramic element body includes exposed regions. The resin layer covers the base external electrodes and the exposed regions. The resin layers completely cover the base external electrodes and the exposed regions on the first and second end surfaces. The first and second external electrodes include a resin layer non-formation region where the resin layer does not cover the base external electrodes or the exposed regions.