The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 1995
Filed:
Feb. 17, 1993
Toshikuni Kojima, Zama, JP;
Masao Fukuyama, Kawasaki, JP;
Yasuo Kudoh, Yokohama, JP;
Koichi Yoshida, Kawasaki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Solid electrolytic capacitors comprise a valve metal member having a dielectric film, with or without a conductive underlying layer, formed on the member, and a conductive polymer film formed on the layer. The conductive polymer film is formed by electrolytic polymerization of a polymerizable monomer contained in a system which comprises the monomer, a support electrolyte, and at least one member selected from silicic acids and silicates with or without phenol compounds. By this, the life of the capacitor even under high temperature and high humidity conditions is significantly improved. Methods for fabricating such capacitors are also described.