ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,475,001, issued on Nov. 18, was assigned to Hitachi Vantara Ltd. (Yokohama, Japan).

"Computer system and backup management method" was invented by Masanori Takata (Tokyo) and Mitsuo Hayasaka (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A computer system includes a backup generation management program that executes generation deletion processing of deleting backup data and a management file corresponding to M generations (M is an integer of 1 or more), when a reduction cost to be reduced by a generation deletion processing is larger than a load cost. The generation deletion processing acquires differential data of the backup data corresponding t...