Murata Manufacturing Co., Ltd.

Yuzo Kawada

Hiromichi Kawakami

Takayuki Tsukizawa

Isao Kato

Tomoya Yokoyama

Akira Baba

Yutaka Fukuda

Nobuyuki Sakai

A low temperature co-fired ceramic material includes a SiO&#x2014;BaO&#x2014;AlO-based primary component, and, as secondary components, 0.044 to 0.077 parts by weight of iron in terms of FeOand 0.30 to 0.55 parts by weight of zirconium in terms of ZrOrelative to 100 parts by weight of the SiO&#x2014;BaO&#x2014;AlO-based primary component. The SiO&#x2014;BaO&#x2014;AlO-based primary component preferably includes 47% to 60% by weight of SiO, 20% to 42% by weight of BaO, and 5% to 30% by weight of AlO.

Low temperature co-fired ceramic material, low temperature co-fired ceramic body, and multilayer ceramic substrate

An oxide porcelain composition includes at least one metal element selected from Al, Si, Ba, B and Cr. The oxide porcelain composition contains about 11.5 weight percent to 60.0 weight percent of Al, in the form of AlO; about 4.0 weight percent to 70.0 weight percent of Si, in the form of SiO; about 4.0 weight percent to 40.0 weight percent of Ba, in the form of BaO; about 1.0 weight percent to 30.0 weight percent of B, in the form of BO; and about 0.3 weight percent to 3.0 weight percent of Cr, in the form of CrO.

Oxide porcelain composition, ceramic multilayer substrate, and ceramic electronic component

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Nagaokakyo, Japan

Yuzo Kawada