ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,389,221, issued on Aug. 12, was assigned to MAXELL LTD. (Kyoto, Japan).
"Mobile terminal and control method thereof" was invented by Masayuki Hirabayashi (Yokohama, Japan) and Hideo Nishijima (Hitachinaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a mobile terminal capable of being protected against unauthorized use by a third party without using a dedicated key device. A plurality of mobile terminals are previously registered mutually. When unlocked among them, one mobile terminal communicates with another mobile terminal in a communication range of short-range wireless communications, unlocks the above another mobile termi...