Murata Manufacturing Co., Ltd.

Tsuyoshi Kimura

Sakyo Hirose

Koji Okumura

Kohei Haruki

Yasuhiro Yamaguchi

An oxide ceramic expressed by the general formula SrBaCoMgFeAlO, where 0.7&#x2264;x&#x2264;1.3, 0&#x3c;y&#x2264;0.8, and 0.8&#x2264;z&#x2264;1.2.

Oxide ceramic and ceramic electronic component

A magnetoelectric effect material includes as a primary component, a polycrystalline oxide ceramic containing at least Sr, Co, and Fe. In the polycrystalline oxide ceramic, the crystal c-axis is oriented in a predetermined direction, and the degree of orientation of the c-axis is 0.2 or more by a Lotgering method. A component substrate is formed of this magnetoelectric effect material.

Electromagnetic effect material and ceramic electronic component

An oxide ceramic represented by the general formula [SrBaCo(ZnNi)FeAlO]. In the formula, 0.7&#x2264;x&#x2264;1.3 and 0.8&#x2264;z&#x2264;1.2. y is 0&#x2264;y&#x2264;0.8 when 0.5&#x2264;u&#x2264;1.0 and is 0&#x2264;y&#x2264;1.6 when 0&#x2264;u&#x2264;0.5. y is preferably 0.4 or less. Further, a variable inductor as a ceramic electronic component has a component base body formed from the oxide ceramic.

An oxide ceramic having a principal component formed of a ferrite compound containing at least Sr, Co, and Fe, and zirconium in an amount of 0.05 to 1.0 wt. % on an oxide equivalent basis, and a ceramic electronic component using the oxide ceramic.

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Nagaokakyo, Japan

Tsuyoshi Kimura