公开(公告)号：US20250022660A1

公开(公告)日：2025-01-16

申请号：US18904137

申请日：2024-10-02

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hideaki TANAKA ,  Daiki FUKUNAGA ,  Koji MORIYAMA

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

Abstract: A multilayer ceramic capacitor includes a laminated body and first and second external electrodes respectively on both end surfaces of the laminated body. When regions where first internal electrodes or second internal electrodes are not present are regarded as side margin portions in a cross section of the laminated body as viewed from the laminating direction, the side margin portions include multiple side margin layers, and the content of Si in the side margin layer closest to the internal electrode is lower than that in the side margin layer other than the side margin layer closest to the internal electrode.

公开(公告)号：US20240013982A1

公开(公告)日：2024-01-11

申请号：US18370652

申请日：2023-09-20

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hideaki TANAKA ,  Daiki FUKUNAGA ,  Koji MORIYAMA

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

CPC classification number: H01G4/30 ,  H01G4/012 ,  H01G4/008 ,  H01G4/12

Abstract: A multilayer ceramic capacitor includes a laminated body and first and second external electrodes respectively on both end surfaces of the laminated body. When regions where first internal electrodes or second internal electrodes are not present are regarded as side margin portions in a cross section of the laminated body as viewed from the laminating direction, the side margin portions include multiple side margin layers, and the content of Si in the side margin layer closest to the internal electrode is lower than that in the side margin layer other than the side margin layer closest to the internal electrode.

公开(公告)号：US20200266001A1

公开(公告)日：2020-08-20

申请号：US16859081

申请日：2020-04-27

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hideaki TANAKA ,  Daiki FUKUNAGA ,  Koji MORIYAMA

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

Abstract: A multilayer ceramic capacitor includes a laminated body and first and second external electrodes respectively on both end surfaces of the laminated body. When regions where first internal electrodes or second internal electrodes are not present are regarded as side margin portions in a cross section of the laminated body as viewed from the laminating direction, the side margin portions include multiple side margin layers, and the content of Si in the side margin layer closest to the internal electrode is lower than that in the side margin layer other than the side margin layer closest to the internal electrode.

公开(公告)号：US20190189354A1

公开(公告)日：2019-06-20

申请号：US16285285

申请日：2019-02-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hideaki TANAKA ,  Daiki FUKUNAGA ,  Koji MORIYAMA

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

CPC classification number: H01G4/30 ,  H01G4/005 ,  H01G4/1218 ,  H01G4/232

Abstract: A multilayer ceramic capacitor includes a laminated body and first and second external electrodes respectively on both end surfaces of the laminated body. When regions where first internal electrodes or second internal electrodes are not present are regarded as side margin portions in a cross section of the laminated body as viewed from the laminating direction, the side margin portions include multiple side margin layers, and the content of Si in the side margin layer closest to the internal electrode is lower than that in the side margin layer other than the side margin layer closest to the internal electrode.

公开(公告)号：US20180240598A1

公开(公告)日：2018-08-23

申请号：US15960694

申请日：2018-04-24

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hideaki TANAKA ,  Daiki FUKUNAGA ,  Koji MORIYAMA

IPC: H01G4/30 ,  H01G4/232

CPC classification number: H01G4/30 ,  H01G4/005 ,  H01G4/1218 ,  H01G4/232

Abstract: A multilayer ceramic capacitor includes a laminated body and first and second external electrodes respectively on both end surfaces of the laminated body. When regions where first internal electrodes or second internal electrodes are not present are regarded as side margin portions in a cross section of the laminated body as viewed from the laminating direction, the side margin portions include multiple side margin layers, and the content of Si in the side margin layer closest to the internal electrode is lower than that in the side margin layer other than the side margin layer closest to the internal electrode.

公开(公告)号：US20170148572A1

公开(公告)日：2017-05-25

申请号：US15415989

申请日：2017-01-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Daiki FUKUNAGA ,  Hideaki TANAKA ,  Koji MORIYAMA

IPC: H01G4/30 ,  H01G4/12 ,  H01G4/248 ,  H01G4/012

CPC classification number: H01G4/30 ,  H01G4/005 ,  H01G4/012 ,  H01G4/1218 ,  H01G4/1227 ,  H01G4/248

Abstract: A multilayer ceramic capacitor includes a ceramic body and external electrodes provided on opposite end surfaces of the ceramic body. The ceramic body includes an inner layer portion including a plurality of ceramic layers defining inner layers and a plurality of first and second internal electrodes each disposed at an interface of adjacent ones of the ceramic layers defining the inner layers, outer layer portions sandwiching the inner layer portion in a direction in which the layers are stacked, and side margin portions sandwiching the inner layer portion and the outer layer portions in a widthwise direction. The side margin portion includes pores that decrease in number along a direction from inside to outside of the ceramic body.

公开(公告)号：US20240312712A1

公开(公告)日：2024-09-19

申请号：US18675491

申请日：2024-05-28

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Daiki FUKUNAGA ,  Hideaki TANAKA ,  Masahiro WAKASHIMA ,  Daisuke HAMADA ,  Hironori TSUTSUMI ,  Satoshi MAENO ,  Ryota ASO ,  Koji MORIYAMA ,  Akihiro TSURU

IPC: H01G4/12 ,  H01G4/008 ,  H01G4/012 ,  H01G4/224 ,  H01G4/232 ,  H01G4/30

CPC classification number: H01G4/1227 ,  H01G4/0085 ,  H01G4/012 ,  H01G4/224 ,  H01G4/2325 ,  H01G4/30

Abstract: An electronic component includes a laminate in which a plurality of dielectric layers and a plurality of internal electrodes are alternately laminated and external electrodes electrically connected to the internal electrodes. A side margin portion as a region in which the plurality of internal electrodes is not provided when a section of the laminate having the length direction and the width direction is viewed from the laminating direction includes a plurality of side margin layers laminated in the width direction. An outer layer portion as a region in which the plurality of internal electrodes is not provided except for the side margin portion when a section of the laminate including the laminating direction and the width direction is viewed from the length direction includes a plurality of layer-margin layers laminated in the laminating direction.

公开(公告)号：US20210350983A1

公开(公告)日：2021-11-11

申请号：US17368909

申请日：2021-07-07

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Daiki FUKUNAGA ,  Hideaki TANAKA ,  Masahiro WAKASHIMA ,  Daisuke HAMADA ,  Hironori TSUTSUMI ,  Satoshi MAENO ,  Ryota ASO ,  Koji MORIYAMA ,  Akihiro TSURU

IPC: H01G4/12 ,  H01G4/012 ,  H01G4/008 ,  H01G4/232 ,  H01G4/224

Abstract: An electronic component includes a laminate in which a plurality of dielectric layers and a plurality of internal electrodes are alternately laminated and external electrodes electrically connected to the internal electrodes. A side margin portion as a region in which the plurality of internal electrodes is not provided when a section of the laminate having the length direction and the width direction is viewed from the laminating direction includes a plurality of side margin layers laminated in the width direction. An outer layer portion as a region in which the plurality of internal electrodes is not provided except for the side margin portion when a section of the laminate including the laminating direction and the width direction is viewed from the length direction includes a plurality of layer-margin layers laminated in the laminating direction.

公开(公告)号：US20210202182A1

公开(公告)日：2021-07-01

申请号：US17203846

申请日：2021-03-17

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hideaki TANAKA ,  Daiki FUKUNAGA ,  Koji MORIYAMA

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

Abstract: A multilayer ceramic capacitor includes a laminated body and first and second external electrodes respectively on both end surfaces of the laminated body. When regions where first internal electrodes or second internal electrodes are not present are regarded as side margin portions in a cross section of the laminated body as viewed from the laminating direction, the side margin portions include multiple side margin layers, and the content of Si in the side margin layer closest to the internal electrode is lower than that in the side margin layer other than the side margin layer closest to the internal electrode.

公开(公告)号：US20210020378A1

公开(公告)日：2021-01-21

申请号：US16926923

申请日：2020-07-13

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takashi FUKUMA ,  Koji MORIYAMA

IPC: H01G4/30 ,  H01G4/248 ,  H01G4/012 ,  H01G4/12

Abstract: In a multilayer ceramic electronic component, a stacked body includes a first outer layer and a first outermost internal electrode layer. The first outer layer defines a first main surface. The first outermost internal electrode layer is adjacent to the first outer layer. The first outermost internal electrode layer is in contact with a first external electrode at a first end surface. The thickness of the first outer layer at the first end surface is greater than the thickness of the first outer layer at the center or approximate center in a length direction.