US Patent Issued to Hitachi on May 20 for "Timetable planning system and timetable generating method" (Japanese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,307,395, issued on May 20, was assigned to Hitachi Ltd. (Tokyo).

"Timetable planning system and timetable generating method" was invented by Yuki Maekawa (Tokyo), Ryota Sato (Tokyo), Ryota Uematsu (Tokyo), Tsuyoshi Minakawa (Tokyo) and Tomoe Tomiyama (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A timetable planning system 1 includes a storage device 13 and a computing device 11. The storage device 13 stores evaluation index improvement degree information 320 that stores relations between a change of each constituent element of an operation timetable on one hand a change in quality of the operation timetable resulting from the change of each con...