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:
Aug. 16, 2011
Filed:
Nov. 19, 2008
Applicants:
Yasumi Kobayashi, Yawata, JP;
Takashi Umemoto, Hirakata, JP;
Hiroshi Nonoue, Hirakata, JP;
Inventors:
Assignee:
Sanyo Electric Co., Ltd., Moriguchi-shi, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/06 (2006.01); H01G 5/013 (2006.01);
U.S. Cl.
CPC ...
Abstract
A solid electrolytic capacitor that prevents leakage current from increasing. The solid electrolytic capacitor includes an anode, a cathode, and a dielectric layer arranged between the anode and the cathode in contact with the cathode. The dielectric layer includes a plurality of recesses arranged in the surface of the dielectric layer, each recess having an opening in an interface with the cathode. Each of the recesses has a depth that is 0.1 to 1.5 times the diameter of the opening.