Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
Reexamination Certificate
2008-03-28
2010-06-01
Pascal, Robert (Department: 2817)
Wave transmission lines and networks
Coupling networks
Frequency domain filters utilizing only lumped parameters
C333S172000
Reexamination Certificate
active
07728695
ABSTRACT:
A multilayer filter comprises an inductor stacked-layer portion and a varistor stacked-layer portion. The varistor stacked-layer portion has a varistor layer the main component of which is ZnO and a hot electrode and ground electrode positioned in opposite with the varistor layer intervening, and the region enclosed between the opposing hot electrode and ground electrode does not contain a Cu component. Because the region enclosed between the opposing hot electrode and ground electrode is a region which manifests varistor characteristics, and thus the region does not contain a Cu component, degradation of the attenuation characteristics can be suppressed.
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Notice of Reasons for Rejection issued for Japanese Application No. 2007-223047 on Mar. 3, 2009.
Glenn Kimberly E
Oliff & Berridg,e PLC
Pascal Robert
TDK Corporation
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