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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.:

US 12444971 B1

PDFFull Text
Date of Patent:
Oct. 14, 2025

Filed:

Oct. 13, 2020

Power supply device capable of maintaining, over a long period, the function of increasing the voltage of a power generation element using a secondary battery

Applicants:

National University Corporation Shizuoka University, Shizuoka, JP;

Zeon Corporation, Tokyo, JP;

Inventors:

Toru Tanzawa, Hamamatsu, JP;

Hideki Uchida, Tokyo, JP;

Assignees:

NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY, , JP;

ZEON CORPORATION, , JP;

Attorney:

OSTROLENK FABER LLP

Primary Examiner:

Edward Tso

Int. Cl.
CPC ...
H01M 10/46 (2006.01); H02J 7/00 (2006.01); H02J 7/34 (2006.01); H02J 50/00 (2016.01);
U.S. Cl.
CPC ...
H02J 7/342 (2020.01); H02J 7/0063 (2013.01); H02J 7/345 (2013.01); H02J 50/001 (2020.01); H02J 2207/20 (2020.01); H02J 2207/50 (2020.01);
Abstract

A power supply device includes a power generation element that converts external energy into electrical energy and outputs the electrical energy as a voltage (V), a secondary battery that is connected in series with the power generation element and outputs a voltage (V), and a power conversion unit that receives the voltage (V) and the voltage (V) and outputs power (P) to a load circuit. The power conversion unit includes a voltage conversion unit connected in series with the power generation element and the secondary battery, a power storage unit connected to the voltage conversion unit, an output terminal for connecting the power storage unit to the load circuit, and an output terminal for connecting the power storage unit to the secondary battery.

Find Patent Forward Citations

Quick Actions:

Tanzawa, Toru. (2025). Power supply device capable of maintaining, over a long period, the function of increasing the voltage of a power generation element using a secondary battery (U.S. Patent No. 12444971). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12444971

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