Compositions: ceramic – Ceramic compositions – Titanate – zirconate – stannate – niobate – or tantalate or...
Reexamination Certificate
2007-09-04
2007-09-04
Group, Karl (Department: 1755)
Compositions: ceramic
Ceramic compositions
Titanate, zirconate, stannate, niobate, or tantalate or...
C501S138000, C501S139000, C361S321400, C361S321500
Reexamination Certificate
active
10545586
ABSTRACT:
A dielectric ceramic composition includes a main component including a dielectric oxide expressed by a composition formula of {(Ca1-xSrx)O}m.(Zr1-yTiy)O2, wherein m, x and y indicating composition mole ratios in the composition formula are in relationships of 0.8≦m≦1.3, 0x≦1.00 and 0.1≦y≦0.8; a first subcomponent including a V oxide; and a second subcomponent including an Al oxide; wherein ratios of respective components with respect to 100 moles of said main component are the first subcomponent: 0 mole<first subcomponent<7 moles (wherein the value is a V oxide value in terms of V2O5); and the second subcomponent: 0 mole<second subcomponent<15 moles (wherein the value is an Al oxide value in terms of Al2O3).
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Takahara Wataru
Watanabe Yasuo
Group Karl
TDK Corporation
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