US Patent Issued to HITACHI on Feb. 3 for "Power conversion device, power conversion system, and method for controlling power conversion device" (Japanese Inventor)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,542,497, issued on Feb. 3, was assigned to HITACHI LTD. (Tokyo).

"Power conversion device, power conversion system, and method for controlling power conversion device" was invented by Akihiko Kanouda (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The objective of the present invention is to reduce the manufacturing costs of an electric power converting device and to reduce the installation space thereof. An electric power converting device comprises: AC/DC converters and AC/DC converters connected in series to an alternating-current power supply; direct-current buses provided on an output side; change-over switches, change-over switches, change-ov...