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US 4,906,964 AGranted
Voltage non-linear resistor
AssigneeNGK Insulators, Ltd.
InventorsOsamu Imai, Ritsu Sato
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Abstract
An improved voltage non-linear sintered resistor which includes zinc oxide, bismuth oxide and at least one metal oxide additive selected from the group consisting of antimony oxide, silicon oxide, and mixtures thereof. The sintered resistor includes at least two crystalline phases including .alpha. and .delta. crystalline phases of bismuth oxide and has a quantity ratio of .alpha./.delta. crystalline phases of bismuth oxide of about 0.1-0.8.
Claims1
A voltage non-linear sintered resistor, comprising:
- zinc oxide, bismuth oxide, and at least one metal oxide additive selected from the group consisting of antimony oxide, silicon oxide, and mixtures thereof;
- and
- at least two crystalline phases including .alpha. and .delta. crystalline phases of bismuth oxide;
- wherein a quantity ratio of .alpha./.delta. crystalline phases of bismuth oxide in said sintered resistor is about 0.1-0.8.
1 more element
Dependencies are inferred from the claim text.