Voltage non-linear resistor ceramic composition and...

Details Voltage non-linear resistor ceramic composition and... Voltage non-linear resistor ceramic composition and...

2011-07-05

2011-07-05

Lee, Kyung (Department: 2833)

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

C338S307000, C338S309000

Reexamination Certificate

active

07973638

ABSTRACT:
A voltage non-linear resistor ceramic composition has ZnO as a main component and is represented by the general formula (1−x)ZnO+x[Sr1−yMy]1−a[Co1−zAz]1+aO3. Here, M is at least one of Ca and Ba, and A is Mn or Cr. x, y, z and a indicate molar ratios, and 0.0005≦x≦0.10, 0≦y≦0.8, 0≦z≦0.8, and −0.1≦a≦0.2 are satisfied.

REFERENCES:
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patent: 5720859 (1998-02-01), Czubarow et al.
patent: 6554609 (2003-04-01), Yadav et al.
patent: 6839273 (2005-01-01), Odagawa et al.
patent: 2004/0155750 (2004-08-01), Nakamura
patent: 2007-005500 (2007-01-01), None
patent: 2004/038738 (2004-05-01), None

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