Compositions: ceramic – Ceramic compositions – Titanate – zirconate – stannate – niobate – or tantalate or...
Patent
1990-05-30
1991-12-17
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Titanate, zirconate, stannate, niobate, or tantalate or...
501135, 264 65, 264 66, C04B 3546, C04B 3548, C04B 3549
Patent
active
050735284
ABSTRACT:
Dielectric ceramic and process of producing the same. A dielectric ceramic essentially consisting of a compound having a disordered perovskite-type complex crystal structure and having a composition represented by the general formula (I):
REFERENCES:
patent: 4731207 (1988-03-01), Matsumoto et al.
S. Kawashima et al., "Ba(Zn.sub.1/3Ta.sub.2/3)O.sub.3 Ceramics with Low Dielectric Loss at Microwave Frequencies", Journal of the American Ceramic Society, vol. 66, No. 6, 1983, pp. 421-423.
Hyuga Takehiro
Matsumoto Kazutoshi
Mukai Tetsuya
Dixon Jr. William R.
Marcheschi Michael A.
Sumitomo Metal & Mining Co., Ltd.
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