ALEXANDRIA, Va., June 25 -- United States Patent no. 12,340,334, issued on June 24, was assigned to NIPPON TELEGRAPH AND TELEPHONE Corp. (Tokyo).

"Skill index provision device, skill index provision method, and program" was invented by Kumiko Ohmori (Tokyo) and Yuki Shiroma (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A skill index provision device for calculating a skill index of a user based on a user's operation log, include a memory unit for saving the user's operation log, an operation log related to an accuracy of operating a key performed by the user; and a skill index calculation unit for calculating the skill index based on a dispersion value of each of the operation logs related to a speed...