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:
Jan. 22, 2013
Filed:
Sep. 11, 2008
Applicants:
Tatsuji Aoyama, Kyoto, JP;
Akiyoshi Oshima, Osaka, JP;
Inventors:
Tatsuji Aoyama, Kyoto, JP;
Akiyoshi Oshima, Osaka, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 9/15 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrode foil includes a base made of foil of valve metal, and a rough surface layer made of valve metal provided on a surface of the base. The rough surface layer includes plural tree structures extending d from the base. Each of the tree structures includes plural particles of valve metal linked together, and is branched into plural twigs. This electrode foil provides an electrolytic capacitor with a small size and a large capacitance.