The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2025
Filed:
Dec. 04, 2023
Subaru Corporation, Tokyo, JP;
Shouta Suzawa, Tokyo, JP;
Kazuki Tomimatsu, Tokyo, JP;
Masato Sato, Tokyo, JP;
Masahiro Saito, Tokyo, JP;
SUBARU CORPORATION, Tokyo, JP;
Abstract
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 an authenticator and a terminal wireless communicator. The authenticator authenticates a user input and switches the portable terminal device from the lock mode to the unlock mode. The terminal wireless communicator sends an unlock mode signal regarding the portable terminal device to the access key via the wireless communication. The access key includes a key wireless communicator that sends and receives a signal via the wireless communication. The key wireless communicator sends the accessible signal when receiving the unlock mode signal.