公开(公告)号：US09691547B2

公开(公告)日：2017-06-27

申请号：US14959229

申请日：2015-12-04

Applicant: TDK CORPORATION

Inventor： Masahiro Iwama ,  Kenya Tamaki ,  Fumiaki Satoh ,  Kenta Yamashita

IPC: H01G4/012 ,  H01G4/30 ,  H01G4/224 ,  H01G4/228 ,  H01G4/38 ,  H01G4/12

CPC classification number: H01G4/012 ,  H01G4/12 ,  H01G4/224 ,  H01G4/228 ,  H01G4/232 ,  H01G4/30 ,  H01G4/385

Abstract: A multilayer ceramic capacitor includes an element body, a first terminal electrode, a second terminal electrode, a plurality of first internal electrode groups, and a plurality of second internal electrode groups. The plurality of first internal electrode groups each include a first number of first internal electrodes connected to the first terminal electrode and arranged in the first direction inside the element body. The plurality of second internal electrode groups each include a second number of second internal electrodes connected to the second terminal electrode and arranged in the first direction inside the element body. The first internal electrode groups and the second internal electrode groups are arranged alternately in the first direction. One of first internal electrodes included in each of the first internal electrode groups and one of second internal electrodes included in each of the second internal electrode groups are opposed to each other.

公开(公告)号：US20250079088A1

公开(公告)日：2025-03-06

申请号：US18773891

申请日：2024-07-16

Applicant: TDK Corporation

Inventor： Toru ONOUE ,  Masahiro Iwama ,  Yutaro Arai

IPC: H01G4/35 ,  H01G4/012 ,  H01G4/232 ,  H01G4/30

Abstract: A multilayer feedthrough capacitor includes an element body, a pair of first external electrodes, a second external electrode, and a plurality of internal electrodes. The plurality of internal electrodes include at least one first internal electrode connected to the pair of first external electrodes, at least one second internal electrode connected to the pair of first external electrodes, and at least one third internal electrode connected to the second external electrode. The at least one first internal electrode is connected to the pair of first external electrodes with a first connection width, and the at least one second internal electrode is connected to the pair of first external electrodes with a second connection width larger than the first connection width.

公开(公告)号：US09842693B2

公开(公告)日：2017-12-12

申请号：US14959363

申请日：2015-12-04

Applicant: TDK CORPORATION

Inventor： Masahiro Iwama ,  Kenya Tamaki ,  Fumiaki Satoh ,  Kenta Yamashita

IPC: H01G4/012 ,  H01G4/30 ,  H01G4/38 ,  H01G4/232 ,  H01G4/12

CPC classification number: H01G4/012 ,  H01G4/12 ,  H01G4/232 ,  H01G4/30 ,  H01G4/385

Abstract: A multilayer ceramic capacitor includes an element body, a first terminal electrode, a second terminal electrode, and a plurality of internal electrodes. The plurality of internal electrodes include a plurality of first internal electrodes, a plurality of second internal electrodes, a plurality of third internal electrodes, and a plurality of fourth internal electrodes. The element body includes a plurality of first and second regions. The first regions are located between the first internal electrodes opposed with each other. The second regions are located between the first internal electrodes opposed to each other through the third internal electrodes, and between the second internal electrodes opposed to each other through the fourth internal electrodes. The first regions and the second regions are alternately located in the first direction.

公开(公告)号：US09984822B2

公开(公告)日：2018-05-29

申请号：US15270744

申请日：2016-09-20

Applicant: TDK CORPORATION

Inventor： Masahiro Iwama ,  Takehisa Tamura ,  Atsushi Sato ,  Tomonori Oi

IPC: H01G4/232 ,  H01G4/30 ,  H01G4/008 ,  H01G4/248 ,  H01G4/12

CPC classification number: H01G4/232 ,  H01G4/008 ,  H01G4/12 ,  H01G4/2325 ,  H01G4/248 ,  H01G4/30

Abstract: An element body includes a first principal surface and a second principal surface opposing each other in a first direction. A first terminal electrode is disposed on the first principal surface side of the element body. A second terminal electrode is disposed on the second principal surface side of the element body. The first terminal electrode includes a first sintered metal layer formed on the first principal surface; and a first plating layer formed on the first sintered metal layer and including base metal. The second terminal electrode includes a second sintered metal layer formed on the second principal surface, a second plating layer formed on the second sintered metal layer and including base metal, and a solder layer formed on the second plating layer and including Sn and a metal having a higher melting point than the melting point of Sn.

公开(公告)号：US12094656B2

公开(公告)日：2024-09-17

申请号：US17902298

申请日：2022-09-02

Applicant: TDK CORPORATION

Inventor： Toru Onoue ,  Kohei Sumiya ,  Masahiro Iwama

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

CPC classification number: H01G4/012 ,  H01G4/232 ,  H01G4/30

Abstract: In a multilayer capacitor, when a width of a element body in a facing direction of a pair of side surfaces is W, and a distance from a start position of a curved shape of the element body on the side surface side in a plane of a first internal electrode of an outermost layer to a virtual surface including the side surface when viewed from the facing direction of a pair of end surfaces is Rw, We/4≤X

公开(公告)号：US12087513B2

公开(公告)日：2024-09-10

申请号：US17946792

申请日：2022-09-16

Applicant: TDK CORPORATION

Inventor： Masahiro Iwama ,  Toru Onoue ,  Kohei Sumiya

IPC: H01G4/35 ,  H01G4/012 ,  H01G4/12 ,  H01G4/228 ,  H01G4/30

CPC classification number: H01G4/35 ,  H01G4/012 ,  H01G4/1227 ,  H01G4/228 ,  H01G4/30

Abstract: In a multilayer capacitor, when a distance between a surface of a first external electrode at an apex position of the first external electrode and a curved surface is defined as Ht, and a distance between the apex position and an apex position of the main surface in a facing direction of the pair of main surfaces is defined as Y, 0 Hs is satisfied for each of the pair of second external electrodes on both sides of the pair of main surfaces.