公开(公告)号：US20240274356A1

公开(公告)日：2024-08-15

申请号：US18646890

申请日：2024-04-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takumi ENDOU ,  Sho WATANABE ,  Akito MORI ,  Masahiro WAKASHIMA

IPC: H01G4/12 ,  H01G4/008

CPC classification number: H01G4/1218 ,  H01G4/008

Abstract: A multilayer ceramic capacitor includes dielectric layers made of a ceramic material and internal electrode layers laminated therein. The internal electrode layers each include dielectric columns provided therein. A solid solution layer in which S is solidly dissolved is provided at an interface between each of the dielectric columns and each of the internal electrode layers.

公开(公告)号：US20230101251A1

公开(公告)日：2023-03-30

申请号：US17947271

申请日：2022-09-19

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Akito MORI ,  Masahiro WAKASHIMA ,  Sho WATANABE ,  Takumi ENDOU

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

Abstract: A multilayer ceramic capacitor includes a multilayer body including an inner layer portion including internal electrode layers and inner dielectric layers laminated alternately, and internal electrode layers at both ends thereof in a lamination direction, and outer dielectric layers covering the inner layer portion, and two external electrodes on both end surfaces of the multilayer body in a length direction intersecting the lamination direction. The inner and outer dielectric layers each include grains, and a difference between an average grain size of grains in the inner dielectric layers and an average grain size of grains in the outer dielectric layers is about 100 nm or less.

公开(公告)号：US20250037939A1

公开(公告)日：2025-01-30

申请号：US18913062

申请日：2024-10-11

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Akito MORI ,  Masahiro WAKASHIMA ,  Sho WATANABE ,  Takumi ENDOU

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

Abstract: A multilayer ceramic capacitor includes a multilayer body including an inner layer portion including internal electrode layers and inner dielectric layers laminated alternately, and internal electrode layers at both ends thereof in a lamination direction, and outer dielectric layers covering the inner layer portion, and two external electrodes on both end surfaces of the multilayer body in a length direction intersecting the lamination direction. The inner and outer dielectric layers each include grains, and a difference between an average grain size of grains in the inner dielectric layers and an average grain size of grains in the outer dielectric layers is about 100 nm or less.

公开(公告)号：US20230099467A1

公开(公告)日：2023-03-30

申请号：US17947446

申请日：2022-09-19

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takumi ENDOU ,  Sho WATANABE ,  Akito MORI ,  Masahiro WAKASHIMA

IPC: H01G4/12 ,  H01G4/008

Abstract: A multilayer ceramic capacitor includes dielectric layers made of a ceramic material and internal electrode layers laminated therein. The internal electrode layers each include dielectric columns provided therein. A solid solution layer in which S is solidly dissolved is provided at an interface between each of the dielectric columns and each of the internal electrode layers.