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:
Dec. 10, 2002
Filed:
Sep. 17, 2001
Applicant:
Inventors:
Takayuki Sugiyama, Tokyo, JP;
Masashi Ozawa, Tokyo, JP;
Hidehiko Itoh, Tokyo, JP;
Kenji Tamamitsu, Tokyo, JP;
Masao Sakakura, Tokyo, JP;
Assignee:
Nippon Chemi-Con Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G 6/04 ; H01G 3/500 ;
U.S. Cl.
CPC ...
H01G 6/04 ; H01G 3/500 ;
Abstract
An electrolyte having a high conductivity, an excellent high-temperature life characteristic and leading to improvement of the shelf characteristic of an aluminum electrolytic capacitor. At least one phosphate ion producing compound and a chelating agent are added using a solvent largely composed of water. Therefor, an aluminum electrolytic capacitor comprising such an electrolyte has a low impedance, an excellent high-temperature life characteristic, and an improved shelf characteristic.