ALEXANDRIA, Va., June 2 -- United States Patent no. 12,647,935, issued on June 2, was assigned to Maxell Ltd. (Kyoto, Japan).

"Position estimation system, information terminal used for same, and position estimation method" was invented by Yasunobu Hashimoto (Otokuni-gun, Japan), Hideyuki Kuwajima (Otokuni-gun, Japan), Nobutaka Okuyama (Otokuni-gun, Japan), Hitoshi Akiyama (Otokuni-gun, Japan) and Susumu Yoshida (Otokuni-gun, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A position estimation system uses an information terminal and has an improved position accuracy. To achieve the purpose, this position estimation system is provided with a first information terminal having a function to transmit a wire...