Toray Industries, Inc.

Yoshihiro Kariya

Seiichiro Murase

Hisashi Nishikawa

Hiroji Shimizu

Junji Wakita

Shota Kawai

Kenta Noguchi

A wireless communication device includes: an antenna for transmitting and receiving a radio wave, a rectifying circuit that is connected to the antenna and rectifies the radio wave received by the antenna to generate voltage, an internal circuit that operates by the voltage generated by the rectifying circuit, and a switch circuit that is disposed contactlessly with respect to the antenna and operates on the basis of an output signal of the internal circuit, wherein the switch circuit includes a coupling wiring and a switch element, and the operation of the switch element varies the impedance of the antenna so that communication can be carried out.

Wireless communication device

The present invention provides a wireless communication device including: a circuit unit; and an antenna which is connected to the circuit unit and which transmits and receives signals to and from a transceiver in a non-contact manner. The wireless communication device transmits different signals to the transceiver, depending on the presence or absence of contact between at least a part of the circuit unit and moisture.

Wireless communication device, diaper and moisture detecting system

Growing community of inventors

Shiga, Japan

Yoshihiro Kariya