Dielectric porcelain composition and dielectric resonator...

Compositions: ceramic – Ceramic compositions – Titanate – zirconate – stannate – niobate – or tantalate or...

Reexamination Certificate

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C501S154000

Reexamination Certificate

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10798355

ABSTRACT:
A dielectric porcelain composition includes MgTiO3and Mg2SiO4and satisfies a+b=1 and 0<b<1, wherein a denotes a molar ratio of MgTiO3and b denotes a molar ratio of Mg2SiO4. It can include MgTiO3and CaTiO3and satisfy a+c=1 and 0<c≦0.15, wherein a has the same meaning as shown above and c denotes a molar ratio of CaTiO3. It can also include MgTiO3, Mg2SiO4and CaTiO3and satisfy a+b+c=1, 0<b<1 and 0<c≦0.15, wherein a, b and c have the same meanings as shown above. These compositions can be manufactured, with the content of Mg2SiO4, the content of CatiO3and the contents of Mg2SiO4and CaTiO3adjusted, respectively. These compositions can be used as dielectric materials to manufacture dielectric resonators.

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“Ceramics Engineering Handbook”, edited by Japan Ceramics Society and published by Gihodo, vol. 1, p. 1885,(May 30, 1993).

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