ALEXANDRIA, Va., June 10 -- United States Patent no. 12,293,639, issued on May 6, was assigned to UNIVERSAL ENTERTAINMENT Corp. (Tokyo).

"Information processing device for randomly determining whether to rearrange symbols in arrangement pattern corresponding to specific payout" was invented by Atsushi Kumita (Tokyo), Toshikazu Jinnouchi (Tokyo), Muneki Shiraishi (Tokyo) and Satoko Baba (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides an information processing device and a program that can lower a difficulty level of clearing a predetermined condition and improve a continuation rate of a player.The information processing device is configured to execute a game in which symbo...