Energy Storage Unit Patent Application Published

ChangeBridge: Patent Apps - Power Supply (H02J)

Published March 26th, 2026

Detected March 26th, 2026

Summary

The USPTO published patent application US20260088623A1 concerning an energy storage unit. The application, filed on September 15, 2023, details a system with an energy storage bank and a bank management device that calculates current or power limit values.

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What changed

The United States Patent and Trademark Office (USPTO) has published patent application US20260088623A1, titled "ENERGY STORAGE UNIT, ENERGY STORAGE SYSTEM, AND ELECTRIC ENERGY STORAGE AND CONVERSION SYSTEM." This application, filed on September 15, 2023, by inventors Tsutomu UENO, Hirokazu ITO, Tomoshige INOUE, and Masakatsu KURISAKA, describes an energy storage unit that includes an energy storage bank connected to a power conversion device and a bank management device. The management device is designed to calculate current or power limit values to prevent excesses relative to target values.

This publication is a notice of a patent application and does not impose any new regulatory obligations or compliance requirements on businesses. It is primarily of interest to entities involved in the development and manufacturing of energy storage technologies, intellectual property professionals, and those monitoring patent landscapes in the energy sector. No immediate actions are required from compliance officers, but it may inform R&D strategies and competitive analysis.

Source document (simplified)

← USPTO Patent Applications

ENERGY STORAGE UNIT, ENERGY STORAGE SYSTEM, AND ELECTRIC ENERGY STORAGE AND CONVERSION SYSTEM

Application US20260088623A1 Kind: A1 Mar 26, 2026

Inventors

Tsutomu UENO, Hirokazu ITO, Tomoshige INOUE, Masakatsu KURISAKA

Abstract

Provided is an energy storage unit 15A for an energy storage system, and the energy storage unit includes an energy storage bank 20 which is connected to a power conversion device 10, and a bank management device 50. The bank management device 50 either calculates, on the basis of a current target value Ino and a current measurement value Int of the energy storage bank 20, a current limit value Ilimit to limit an excess of a current I with respect to the current target value Ino, or calculates, on the basis of a power target value Pno and a power measurement value Pnt of the energy storage bank 20, a power limit value Plimit to limit an excess of power with respect to the power target value Pno.