Dielectric porcelain composition
US6844284B2 · kind B2 · utility
5Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2002 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Dec 22, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/94
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A dielectric porcelain composition comprising Ba, Nd, Pr, Bi, Ti and at least one of Na and K and satisfying a condition that when the composition is expressed by composition formula: BaO—aNdO3/2—bPrO11/6—cBiO3/2—dTiO2—eAO1/2, wherein A is at least one of Na and K, and a, b, c, d and e represent a molar ratio, a, b, c, d and e are in respective ranges of 1.5≦a≦2.6, 0.02≦b≦1.00, 0.2≦c≦0.6, 4.5≦d≦5.5 and 0.02≦e≦0.30.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.