Tdk Corporation

Masataka Kitagami

Kenichi Kawabata

Hisayuki Abe

Miyuki Yanagida

Susumu Taniguchi

Yukari Inoue

Disclosed herein is a composite magnetic powder that includes an iron-containing magnetic powder and an insulating layer comprising a silicon oxide formed on a surface of the iron-containing magnetic powder. The insulating layer contains pores, and an area ratio of the pores in a cross section of the insulating layer is 5% or less.

Composite magnetic powder, powder magnetic core using the same, and manufacturing method for composite magnetic powder

Disclosed herein is a composite magnetic powder that includes an iron-containing magnetic powder, and an insulating layer comprising a silicon oxide formed on a surface of the iron-containing magnetic powder. An O/Si ratio of the silicon oxide constituting the insulating layer is 2.1 or more and 2.2 or less.

A ceramic electronic componentincludes a ceramic bodyin which internal electrodes containing a metal component is buried, and a pair of terminal electrodesprovided to cover both end surfacesof the ceramic body to which the internal electrodes are exposed. Each of the terminal electrodeshas a first electrode layer and a second electrode layer formed by baking a conductive green sheet from a side close to the ceramic body. The second electrode layer contains the metal component diffused from the internal electrodes.

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Tokyo, Japan

Masataka Kitagami