Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01C
RESISTORS
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7/00
Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
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H01C7/04
having negative temperature coefficient
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H01C7/042
mainly consisting of inorganic non-metallic substances
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H01C7/043
Oxides or oxidic compounds
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H01C7/045
Perovskites, e.g. titanates
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