Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Reexamination Certificate
2007-07-31
2007-07-31
Ha, Nguyen T. (Department: 2831)
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
C361S321100, C361S311000, C361S312000, C361S313000, C361S320000
Reexamination Certificate
active
10526409
ABSTRACT:
A monolithic ceramic electronic component includes a low-permeability coil portion formed by stacking low-permeability ceramic green sheets, a first coil and a relatively large number of pores, and a high-permeability coil portion formed by stacking high-permeability ceramic green sheets, a second coil and a relatively small number of pores. The first coil and the second coil are electrically connected in series to form a spiral coil. The coil portion composed of a ferrite ceramic having a small number of pores has a high permeability and a high dielectric constant, and the coil portion composed of a ferrite ceramic having a large number of pores has a low permeability and a low dielectric constant.
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Ha Nguyen T.
Keating & Bennett LLP
Murata Manufacturing Co. Ltd.
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