ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,927, issued on Oct. 21, was assigned to SUBARU Corp. (Tokyo).
"Vehicle key system and access key" was invented by Shouta Suzawa (Tokyo), Kazuki Tomimatsu (Tokyo), Masato Sato (Tokyo) and Masahiro Saito (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle key system includes an access key, a portable terminal device, and a vehicle. The access key sends an accessible signal via wireless communication. The portable terminal device is switched between a lock mode and an unlock mode. The vehicle unlocks a door of the vehicle or perform a start-up of the vehicle or both when receiving the accessible signal. The portable terminal device includes...