The European Patent Office (EPO) has published patent application EP4302391A1, filed by Hitachi Energy Ltd., on March 11, 2026. This publication pertains to a method for operating a converter, the converter itself, and a related computer program product, with classifications including H02M 5/27, H02M 7/483, and H02J 3/18.

This is a patent publication, not a regulatory rule or enforcement action. It does not impose new compliance obligations or penalties on regulated entities. Companies operating in the power supply and converter technology sectors may wish to review the patent for competitive intelligence or potential licensing opportunities.