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:
Sep. 11, 2001
Filed:
Nov. 30, 1999
Akihiko Komatsu, Ina, JP;
Tetsushi Ogawara, Ina, JP;
Rubycon Corporation, , JP;
Abstract
An electrolytic solution for an electrolytic capacitor, which includes (1) a solvent made up of 20 to 80% by weight of an organic solvent and 80 to 20% by weight of water, (2) at least one electrolyte selected from the group consisting of carboxylic acids, salts of carboxylic acids, inorganic acids, and salts of inorganic acids, and (3) a chelate compound. Preferably, an organic acid or salt thereof and an inorganic acid or salt thereof are used in combination. The chelate compound may be selected from the group consisting of ethylenediamine-N,N,N′,N′-tetraacetic acid, trans-1,2-diaminocyclohexane-N,N,N′,N′-tetraacetic acid monohydrate, N,N-bis(2-hydroxyethyl)glycine, ethylenediamine-N,N,N′,N′-tetrakis(methylenephosphonic acid), diethylenetriamine-N,N,N′,N″,N″-pentaacetic acid, 1,3-diamino-2-hydroxypropane-N,N,N′,N′-tetraacetic acid, ethylenediamine-N,N′-diacetic acid, ethylenediamine-N,N′-bis(methylenephosphonic acid) hemihydrate, O,O′-bis(2-aminoethyl)ethyleneglycol-N,N,N′,N′-tetraacetic acid, and N-(2-hydroxyethyl)ethylenediamine-N,N′,N′-triacetic acid. An electrolytic capacitor using, as its electrolytic solution, the disclosed electrolytic solution is also disclosed.