ALEXANDRIA, Va., July 9 -- United States Patent no. 12,354,161, issued on July 8, was assigned to HITACHI LTD. (Tokyo).

"Power generation plant operation assistance system and power generation plant control system" was invented by Shuhei Yamasaki (Tokyo), Hiroto Takeuchi (Tokyo) and Keisuke Noda (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Bids on a power trading market can be performed to improve an economic balance of power generation plants and power companies. In order to solve the above problems, in the present invention, a plant operation assistance system 10 that assists the operation of a thermal power plant 1101 and a pumped storage power plant 1102, which supply power to a power transmissi...