公开(公告)号：US20240404750A1

公开(公告)日：2024-12-05

申请号：US18800362

申请日：2024-08-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryo NISHIMURA

IPC: H01G4/005 ,  H01G4/12 ,  H01G4/224 ,  H01G4/232 ,  H01G4/30

Abstract: A multilayer ceramic capacitor includes a ceramic element including ceramic layers, first and second internal electrodes that are laminated in a height direction, a first main surface and a second main surface opposed in the height direction, a first and second end surface opposed in a length, and a first and second lateral surface opposed in a width direction, and a first and second external electrode on an outer surface of the ceramic element. Each of the first internal electrodes extends toward and is exposed at the first end surface, and is electrically connected with the first external electrode. Each of the second internal electrodes extends toward and is exposed at the second end surface, and is electrically connected with the second external electrode. The first and the second external electrodes have an L-shape. The second main surface includes embossed holes.

公开(公告)号：US20240395464A1

公开(公告)日：2024-11-28

申请号：US18791646

申请日：2024-08-01

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryo NISHIMURA

IPC: H01G4/30 ,  H01G2/06 ,  H01G4/008 ,  H01G4/012

Abstract: A multilayer ceramic capacitor includes first and second internal electrodes, first and second main surfaces opposed to each other, first and second end surface opposed to each other, and first and second lateral surfaces opposed to each other, and first and second external electrodes on an outer surface of the ceramic element body. Each of the first internal electrodes is electrically connected with the first external electrode. Each of the second internal electrodes is electrically connected with the second external electrode. When a cross section is viewed, the first external electrode has an L-shape on the first end surface and the first main surface, and the second external electrode has an L-shape on the second end surface and the first main surface.

公开(公告)号：US20230307186A1

公开(公告)日：2023-09-28

申请号：US18122177

申请日：2023-03-16

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kosuke ONISHI ,  Satoshi MURAMATSU ,  Yukie WATANABE ,  Ryo NISHIMURA

IPC: H01G4/30 ,  H01G4/232

CPC classification number: H01G4/30 ,  H01G4/232

Abstract: A multilayer ceramic capacitor includes a ceramic body including ceramic layers, first internal electrodes, and second internal electrodes laminated in a height direction, a first external electrode on at least part of a first end surface and on part of a first main surface and not on a second main surface, the first external electrode being electrically connected to the first internal electrodes, a second external electrode on at least part of a second end surface and on part of the first main surface and is not on the second main surface, the second external electrode being electrically connected to the second internal electrodes, at least two penetration portions penetrating the ceramic body between the first and second main surfaces, and a reinforcing layer on at least part of the second main surface, the reinforcing layer covering the at least two penetration portions exposed from the ceramic body.

公开(公告)号：US20230420189A1

公开(公告)日：2023-12-28

申请号：US18367520

申请日：2023-09-13

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryo NISHIMURA

IPC: H01G4/232 ,  H01G4/30

CPC classification number: H01G4/232 ,  H01G4/30

Abstract: A multilayer ceramic capacitor includes a multilayer body, and external electrodes on a portion of a side surface portion including four side surface of the multilayer body, and on a portion of a first main surface of the multilayer body. The first main surface includes first regions covered with the external electrodes and a second region exposed from the external electrodes. The first regions of the first main surface each include recesses therein. The recesses in each of the first regions each include a spherical curved wall surface. The recesses in each of the first regions each have an average inlet size of about 0.3 μm or more and about 10.5 μm or less.

公开(公告)号：US20220392709A1

公开(公告)日：2022-12-08

申请号：US17828491

申请日：2022-05-31

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hisashi NAKAHIRO ,  Ryo NISHIMURA

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

Abstract: A multilayer ceramic capacitor includes a multilayer body including laminated dielectric layers and laminated internal electrode layers on the dielectric layers, and external electrodes connected to the internal electrode layers. The multilayer body further includes an inner layer portion, a first main surface-side outer layer portion, and a second main surface-side outer layer portion. At least one of the first main surface-side outer layer portion or the second main surface-side outer layer portion includes a discharge path along a plane perpendicular or substantially perpendicular to the lamination direction to discharge a chemical element to outside of the multilayer body.

公开(公告)号：US20220301777A1

公开(公告)日：2022-09-22

申请号：US17691607

申请日：2022-03-10

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryo NISHIMURA

IPC: H01G4/232 ,  H01G4/30

Abstract: A multilayer ceramic capacitor includes a multilayer body, and external electrodes on a portion of a side surface portion including four side surface of the multilayer body, and on a portion of a first main surface of the multilayer body. The first main surface includes first regions covered with the external electrodes and a second region exposed from the external electrodes. The first regions of the first main surface each include recesses therein. The recesses in each of the first regions each include a spherical curved wall surface. The recesses in each of the first regions each have an average inlet size of about 0.3 μm or more and about 10.5 μm or less.

公开(公告)号：US20210233713A1

公开(公告)日：2021-07-29

申请号：US17144191

申请日：2021-01-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryo NISHIMURA

IPC: H01G4/30 ,  H01G4/012 ,  H01G4/12 ,  H01G4/008 ,  H01G2/06

Abstract: A multilayer ceramic electronic component includes a multilayer body and a protective layer provided at least on a first main surface or a second main surface of the multilayer body, in which the protective layer includes a carbon material, has a carbon content of about 70 atm % or more determined through exclusion of hydrogen, oxygen, and halogen contents, and has a sp3 percentage of about 10% or more as an index of C—C bond type.