USPTO Grants Patent for Wireless Power Transmission System

ChangeBridge: Patent Grants - Power Supply (H02J)

Published March 24th, 2026

Detected March 25th, 2026

Summary

The USPTO has granted a patent (US12587042B2) to Panasonic Holdings Corporation for a wireless power transmission system and method. The patent aims to improve transmission efficiency by allowing the power transmitter to adjust power wave transmission based on measured signal strength from receivers, even without direct communication functionality.

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What changed

The United States Patent and Trademark Office (USPTO) has granted patent US12587042B2 for a wireless power transmission system and method to Panasonic Holdings Corporation. The patented technology focuses on enhancing power wave transmission efficiency by enabling the power transmitter to adjust its transmission based on feedback from power receivers, specifically by measuring the strength of power waves received from the receivers and transmitting power when this strength exceeds a predetermined value. This adjustment can occur even if the power transmitter lacks direct communication capabilities.

This patent grant represents a new intellectual property for wireless power technology. While not a regulatory rule imposing obligations on other entities, it signifies a technological advancement that may influence future product development and industry standards in wireless power. Compliance officers in the technology and manufacturing sectors should be aware of this patent as it pertains to innovations in power transmission systems.

Source document (simplified)

← USPTO Patent Grants

Wireless power transmission system and wireless power transmission method with power wave-based adjustment mode

Grant US12587042B2 Kind: B2 Mar 24, 2026

Assignee

Panasonic Holdings Corporation

Inventors

Aya Kurokawa, Hiroyuki Tani, Yuki Tanaka

Abstract

A wireless power transmission system and a wireless power transmission method are provided that, even if a power transmitter does not have a communication functionality, can improve a transmission efficiency of power waves transmitted from the power transmitter. The wireless power transmission system includes a power transmitter that transmits a power wave and one or more power receivers that receive the power wave, wherein the power transmitter includes a controller that measures a strength of a power wave transmitted from the power receivers by adjusting at least one of a position of the power transmitter and an orientation of an antenna receiving the power wave transmitted from the power receivers and transmits a power wave to the power receivers in accordance with at least one of the position of the power transmitter and the orientation of the antenna upon the measured strength of the power wave exceeding a predetermined value.