ALEXANDRIA, Va., June 17 -- United States Patent no. 12,314,875, issued on May 27, was assigned to Hitachi Ltd. (Tokyo).

"Value chain plan linking method, value chain plan linking apparatus, and value chain plan linking system" was invented by Atsuki Kiuchi (Tokyo) and Tazu Nomoto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A plan parameter obtaining an optimal result between a plurality of software pieces that are linkingly operated is calculated. A value chain plan linking method that uses a value chain plan linking apparatus that combines and executes a plurality of software pieces according to a task. At least any one of the plurality of software pieces uses, as an input parameter, an output pa...