Patent · US Expired

Electrolytic capacitor

US4117531A · kind A · utility

13Cited by
7References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 25, 1977
Grant dateSep 26, 1978
Priority date
Expiry dateMay 25, 1997

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01G9/022
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An electrolyte system for electrolytic capacitors contains as solute an ammonium or amine salt of an amic acid or an amate. These salts may be obtained by the reaction of maleic, succinic, phthalic, or hexahydrophthalic anhydride with ammonia or an amine.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.