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.

Date of Patent:
Aug. 02, 2022

Filed:

Nov. 21, 2018
Applicant:

Nippon Chemi-con Corporation, Tokyo, JP;

Inventor:

Atsushi Yoshida, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 9/055 (2006.01); H01G 9/26 (2006.01); H02M 1/14 (2006.01); H02M 7/5387 (2007.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
H01G 9/055 (2013.01); H01G 9/26 (2013.01); H02M 1/14 (2013.01); H02M 7/5387 (2013.01); H02P 27/06 (2013.01);
Abstract

An electrolytic capacitor module includes at least two types of electrolytic capacitors (--) having etching pits in electrode foils. The at least two types of electrolytic capacitors (--) are different in length of the etching pits and are connected in parallel. The number of electrolytic capacitors to be mounted is the same or different. The electrolytic capacitors (--) are each an electrolytic capacitor with an etching pit length of 27 [μm] or less or an electrolytic capacitor with an etching pit length over 27 [μm]. Such a configuration enhances performance of the electrolytic capacitors in a high-frequency region, keeps a rate of decrease in capacitance low in the high-frequency region, and enhances a ripple current capability in the high-frequency region.


Find Patent Forward Citations

Yoshida, Atsushi. (2022). Electrolytic capacitor module, filter circuit and power converter (U.S. Patent No. 11404221). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11404221

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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