公开(公告)号：US20250118494A1

公开(公告)日：2025-04-10

申请号：US18819270

申请日：2024-08-29

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Kenji TAKASHIMA ,  Kazuki KAWAI ,  Mika NISHIZAWA ,  Kazuho MURATA

IPC: H01G4/12 ,  H01G4/30

Abstract: A multilayer ceramic electronic component includes an element body formed by alternately stacked internal electrode layers and dielectric layers. The abundance ratio of crystals of the cubic crystal system in grains that form the dielectric layers sandwiched by the internal electrode layers is 25% by mass or higher but no higher than 75% by mass, and the average grain size of the grains that form the dielectric layers sandwiched by the internal electrode layers is 30 nm or larger but no larger than 70 nm. The multilayer ceramic component is intended to maintain a high dielectric constant while offering good DC bias properties.

公开(公告)号：US20190088415A1

公开(公告)日：2019-03-21

申请号：US16134774

申请日：2018-09-18

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Kenji TAKASHIMA

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

Abstract: A ceramic electronic device includes: a ceramic main body that has at least two edge faces facing each other, has an internal electrode layer inside thereof and has a parallelepiped shape; and external electrodes formed on the two edge faces, wherein: the external electrodes have at least a plated layer; an oxide film of a metal for plating of the plated layer on a region that is a part of at least one of four side faces of the ceramic main body other than the two edge faces, the region not being covered with the external electrodes; and a ratio of (a peak area of an oxide of the metal for plating)/(a peak area of the metal for plating) is 13.1 or more in a photoelectron spectrum of an outermost surface of the oxide film.

公开(公告)号：US20160254082A1

公开(公告)日：2016-09-01

申请号：US15055356

申请日：2016-02-26

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Atsushi TANADA ,  Kenji TAKASHIMA ,  Yoko ORIMO

IPC: H01F1/147 ,  C22C38/06 ,  C22C38/00 ,  C22C38/34

CPC classification number: C22C38/002 ,  C22C33/0221 ,  C22C33/0257 ,  C22C38/06 ,  C22C38/34 ,  C22C2202/02 ,  H01F1/24 ,  H01F1/33 ,  H01F41/0246

Abstract: In some embodiments, a magnetic body 1 has soft magnetic alloy grains 11 that contain Fe, M (M is a metal element that oxidizes more easily than Fe), and S, as well as oxide films 12 produced by partial oxidization of the soft magnetic alloy grains 11, wherein the magnetic body 1 has its adjacent soft magnetic alloy grains 11 bonded together at least partially through the oxide films 12, and contains Fe by 92.5 to 96 percent by weight and S by 0.003 to 0.02 percent by weight. The magnetic body can have high levels of both magnetic permeability and volume resistivity, to meet the demand for smaller, higher-performance electronic components.

Abstract translation: 在一些实施例中，磁体1具有含有Fe，M（M是比Fe更容易氧化的金属元素）的软磁性合金晶粒11，以及通过软磁体的部分氧化产生的氧化物膜12 合金晶粒11，其中磁体1具有至少部分地通过氧化膜12结合在一起的相邻的软磁性合金晶粒11，并且含有92.5至96重量％的Fe和0.003至0.02重量％的S。 磁体可以具有高水平的磁导率和体积电阻率，以满足对更小，更高性能的电子部件的需求。