ALEXANDRIA, Va., May 1 -- United States Patent no. 11,971,721, issued on April 30, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Autonomous mobile robot control system, control method thereof, a non-transitory computer readable medium storing control program thereof, and autonomous mobile robot control device" was invented by Tomohisa Takai (Nagoya, Japan), Yuhei Yamaguchi (Toyota, Japan), Satoshi Toyoshima (Okazaki, Japan), Yuta Watanabe (Toyota, Japan), Tetsuya Taira (Nagakute, Japan), Mikio Honda (Toyota, Japan), Shiro Oda (Anjo, Japan) and Nobuhisa Otsuki (Toyota, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "To effectively enhance the operation efficiency of an autonomous mobile robot, an...