Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Reexamination Certificate
2005-02-08
2005-02-08
Reichard, Dean A. (Department: 2831)
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
C361S321100, C361S301200, C361S321500, C361S311000, C361S313000
Reexamination Certificate
active
06853536
ABSTRACT:
A dielectric ceramic includes, in composition, a perovskite-type compound having the general formula ABO3containing Ba, Ca and Ti, and an additive component containing Si, R(La or the like), and M (Mn or the like), the additive component not being solid-dissolved and, moreover, the major component existing in at least 90% of the cross-section of each of the crystal grains of which the number is equal to at least 85% of that of all of the crystal grains contained in the dielectric ceramic, at least the Ba, the Ca, the Ti, the Si, the R, and the M being contained at at least 85% of the analytical points in the crystal grain boundaries of the dielectric ceramic.
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Kata Akira
Konaka Hiroyasu
Muto Kazuo
Nakamura Tomoyuki
Sano Harunobu
Dickstein Shapiro Morin & Oshinsky LLP.
Ha Nguyen T.
Murata Manufacturing Co. Ltd.
Reichard Dean A.
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