Electrical resistors – Resistance value responsive to a condition – Current and/or voltage
Reexamination Certificate
2006-03-24
2010-06-22
Enad, Elvin G (Department: 2832)
Electrical resistors
Resistance value responsive to a condition
Current and/or voltage
Reexamination Certificate
active
07741949
ABSTRACT:
A varistor includes a ceramic insulating substrate, a varistor section having an outer surface, and first and second external electrodes provided on the outer surface of the varistor section. The varistor section includes a varistor layer on the ceramic insulating substrate, first and second internal electrodes, and first and second via-conductors embedded in the varistor layer and exposing from the varistor layer. The second internal electrode has a portion facing the first internal electrode. The first internal electrode and the portion of the second internal electrode sandwiches at least a portion of the varistor layer. The first and second via-conductors are connected to the first and second internal electrodes, respectively. The first and second external electrodes are connected to the first and second via-conductors, respectively. This varistor has a small thickness and a large mechanical strength.
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Chinese Office Action, issued in Chinese Patent Application No. CN 2006100718991 dated on Mar. 6, 2009.
Inoue Tatsuya
Katsumura Hidenori
Kobayashi Keiji
Baisa Joselito
Enad Elvin G
McDermott Will & Emery LLP
Panasonic Corporation
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