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:
Nov. 28, 2000
Filed:
Jul. 23, 1998
Applicant:
Inventors:
Takashi Fukaumi, Toyama, JP;
Kenji Araki, Toyama, JP;
Satoshi Arai, Toyama, JP;
Yuji Aoki, Toyama, JP;
Kenichi Takahashi, Toyama, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G / ; H01G / ;
U.S. Cl.
CPC ...
361523 ; 361525 ;
Abstract
In a method of making a solid electrolytic capacitor using an oxide film of an electrochemical valve metal as the dielectric and having, as solid electrolytes, first and second conducting polymer layers formed successively on the oxide film, the first and second conducting polymer layers are formed by chemical oxidative polymerization processes using an oxidizing agent, and the first conducting polymer layer (3) is formed from a compound having a lower reaction rate than the compound used to form the second conducting polymer layer (4).