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. 19, 1989
Filed:
May. 20, 1987
Applicant:
Inventors:
Kazumi Naitoh, Yokohama, JP;
Yoshiaki Arakawa, Yokohama, JP;
Assignees:
Showa Denko Kabushiki Kaisha, Tokyo, JP;
Nippon Chemi-Con Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G / ;
U.S. Cl.
CPC ...
361512 ; 295701 ;
Abstract
Disclosed is a solid electrolytic capacitor having a roll-form capacitor element. The capacitor element has a coated structure comprising a valve metal positive electrode substrate having a dielectric oxide layer on the surface thereof, a semiconductor layer formed on the dielectric oxide layer and an electroconductive layer formed on the semiconductor layer.