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. 05, 2025
Filed:
Apr. 21, 2023
Applicant:
Japan Capacitor Industrial Co., Ltd., Tokyo, JP;
Inventors:
Hiroshi Kubo, Tokyo, JP;
Masaya Otsuka, Tokyo, JP;
Assignee:
Japan Capacitor Industrial Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G 9/04 (2006.01); H01G 9/048 (2006.01); H01G 9/055 (2006.01); H01G 9/15 (2006.01);
U.S. Cl.
CPC ...
H01G 9/04 (2013.01); H01G 9/048 (2013.01); H01G 9/055 (2013.01); H01G 9/151 (2013.01);
Abstract
An electrode foil having high capacitance per unit volume is provided. The electrode foil is an electrode foil for an electrolytic capacitor. The electrode foil is an electrode foil extending in a longitudinal direction and having a width direction orthogonal to the longitudinal direction, the electrode foil including an enlarged surface portion on a surface of the electrode foil, wherein a crack is formed in the enlarged surface portion in a direction oblique to the width direction.