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US 9,001,494 B2Granted
Dielectric ceramic and single-plate capacitor
AssigneeMurata Manufacturing Co., Ltd.
InventorsKazuji Kushiro, Tatsuya Ishikawa, Tomomitsu Yamanishi, Naoki Kawara
Life of this patent
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Abstract
A dielectric ceramic that contains, as its main constituent, a perovskite-type compound containing Ba and Ti, and, with respect to the Ti content of 100 parts by mole, contains Re1 (Re1 is at least one element of La and Nd) in the range of 0.15 to 3 parts by mole, Y in the range of 0.1 to 3 parts by mole, Mg in the range of 0.3 to 13 parts by mole, and Fe in the range of 0.01 to 5 parts by mole.
Claims13
A dielectric ceramic comprising:
- a main constituent of a perovskite-type compound containing Ba and Ti, and further comprising Re1, Y, Mg, and Fe, wherein
- Re1 is at least one element of La and Nd, and
- when the content of Ti is 100 parts by mole,
- the content of Re1 is 0.15 to 3 parts by mole,
- the content of Y is 0.1 to 3 parts by mole,
- the content of Mg is 0.3 to 13 parts by mole, and
- the content of Fe is 0.01 to 5 parts by mole.
4 more elements
Dependencies are inferred from the claim text.