Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Reexamination Certificate
2005-03-01
2005-03-01
Thomas, Eric (Department: 2831)
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
C361S321500, C501S127000, C501S105000
Reexamination Certificate
active
06862166
ABSTRACT:
The invention provides a ceramic capacitor including a ceramic dielectric body at least two spaced-part electrodes in contact with the body wherein at least 80 weight percent of the body consists of alumina, the body further including at least 0.5 BaTiO3w/w %, at least 0.5 w/w % MgO, <0.05 w/w % SiO2, at least 4.5 w/w % ZrO2and at least 0.07 w/w % HfO2.
REFERENCES:
patent: 3819990 (1974-06-01), Hayashi et al.
patent: 5668694 (1997-09-01), Sato et al.
patent: 5747396 (1998-05-01), Miyakoshi et al.
patent: 6344427 (2002-02-01), Komatsu et al.
Cohen Michael
Cohen Shalom Itzhak
Fulbright & Jaworski LLP
Thomas Eric
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