Kabushiki Kaisha Tokai Rika Denki Seisakusho

Shinya Saguchi

Masahiro Arakawa

Masahiko Oya

Takanori Matsuyama

Yosuke Doi

Junji Murase

Yuji Fukano

Shinya Watanabe

A sharing system includes a sharing device arranged in a shared subject and a valet key that is allowed to operate the shared subject. The sharing system further includes a portable terminal that obtains key information required to use the shared subject and is allowed to operate the shared subject when the key information is authenticated through communication with the sharing device. The sharing system further includes a privilege granting unit that grants privilege to operate the shared subject from the portable terminal to the valet key, and a restriction imposing unit that imposes a restriction on use of the portable terminal when the operation privilege for the shared subject is granted from the portable terminal to the valet key.

Sharing system using valet key

A key locator includes a first and second antenna arranged in a vehicle. A first query unit transmits a challenge from the first antenna. A second query unit transmits a challenge from the second antenna to an electronic key responding to the challenge of the first query unit. A key locating unit determines the location of the electronic key in accordance with whether responses to the challenges from the first and second antennas are received from the electronic key.

Key locator for electronic key system

Growing community of inventors

Aichi, Japan

Shinya Saguchi