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:
Jun. 17, 2025
Filed:
May. 02, 2022
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Mitsuhisa Yoshimura, Osaka, JP;
Miwa Ogawa, Osaka, JP;
Natsuyo Sasada, Nara, JP;
Tatsuji Aoyama, Kyoto, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G 9/042 (2006.01); H01G 9/00 (2006.01); H01G 9/048 (2006.01); H01G 9/15 (2006.01);
U.S. Cl.
CPC ...
H01G 9/0425 (2013.01); H01G 9/0029 (2013.01); H01G 9/048 (2013.01); H01G 9/15 (2013.01);
Abstract
A cathode foil for electrolytic capacitors includes a metal porous part, a metal core part that is continuous with the metal porous part, and a coating film covering the metal porous part. Pores in the metal porous part are open at a first main surface of the cathode foil. The coating film is disposed in a region from the first main surface to a depth more than or equal to 10% of a thickness of the metal porous part in a thickness direction of the metal porous part.