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. 13, 2026
Filed:
Jan. 24, 2022
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Mitsuhisa Yoshimura, Osaka fu, JP;
Toshifumi Kadokawa, Osaka fu, JP;
Masami Tsubaki, Kyoto fu, JP;
Yuji Otsuka, Yamaguchi ken, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 9/055 (2006.01); H01G 9/145 (2006.01); H01G 9/15 (2006.01);
U.S. Cl.
CPC ...
H01G 9/055 (2013.01); H01G 9/145 (2013.01); H01G 9/151 (2013.01);
Abstract
An electrode foil for an electrolytic capacitor includes a metal foil that includes a porous portion and a core portion continuous to the porous portion. The metal foil has a main surface in which pores in the porous portion are open. The porous portion includes a plurality of recessed portions that are open in the main surface and distributed in a dot pattern in an in-plane direction of the metal foil. The pores in the porous portion have an opening length smaller than 2 μm, and the recessed portions have an opening length of 2 μm or more.