Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01G
CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
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9/00
Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
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H01G9/04
Electrodes; or formation of dielectric layers thereon
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H01G9/042
characterised by the material
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H01G9/0425
specially adapted for cathode
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