ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,555,054, issued on Feb. 17, was assigned to HITACHI LTD. (Tokyo).
"Production planning device, production planning system, and production planning method" was invented by Takahiro Nakano (Tokyo), Youichi Nonaka (Tokyo) and Daisuke Tsutsumi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "It is possible to update a process plan, a work plan, and a production plan in a short time with respect to a production fluctuation event and flexibly deal with the production fluctuation. A production planning device includes: a process plan generation unit which generates a plurality of process plans including an alternative process plan, the process plans relat...