Varistor

Details Varistor Varistor

2011-08-09

2011-08-09

Lee, Kyung (Department: 2833)

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

C338S020000

Reexamination Certificate

active

07994893

ABSTRACT:
A varistor has a ceramic composition to exhibit nonlinear voltage-current characteristics, and at least two electrodes arranged to sandwich at least a portion of the ceramic composition. The ceramic composition contains a mixture phase in which a first phase containing zinc oxide as a major component, and a second phase comprised of an oxide of Ca and Si are mixed.

REFERENCES:
patent: 5640136 (1997-06-01), Yodogawa et al.
patent: 7075404 (2006-07-01), Hirose et al.
patent: 2007/0132540 (2007-06-01), Matsuoka et al.
patent: A-61-43403 (1986-03-01), None
patent: A 2002-246207 (2002-08-01), None
patent: A-2004-146675 (2004-05-01), None
patent: 10-0627961 (2006-09-01), None
patent: 10-2007-63453 (2007-06-01), None
Translation of Jun. 23, 2010 Office Action issued in Chinese Patent Application No. 200810133335.5.
Office Action issued in KR Application No. 10-2008-0069916 on Dec. 22, 2010 (with English Abstract).

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