07.05.22
Ryohei Omori, Nagaokakyo, Japan; Noboru Kato, Nagaokakyo, Japan; and Kunihiro Komaki, Nagaokakyo, Japan.
Assigned to Murata Manufacturing Co., Ltd., Nagaokakyo, Japan.
Filed: 5/18/18
Issued: 6/14/22
A sanitary article for communicating a moisture indication signal, the sanitary article having a front face, a crotch portion and a back face, the sanitary article comprising: a moisture-absorptive material; a moisture-detecting RFID tag disposed adjacent to the moisture-absorptive material disposed on the crotch portion or the back face and including an RFIC element; and an antenna element connected to the RFIC element; and a relay antenna connected to the moisture-detecting RFID tag on the crotch portion or the back face and extended from the crotch portion or the back face to the front face of the sanitary article, the relay antenna elongated in the sanitary article to extend a communication range by relaying an output of the moisture-detecting RFID tag, wherein the moisture-detecting RFID tag is configured to vary an output of a communication distance based on a variation of an amount of moisture in the moisture-absorptive material, and wherein the RFID tag and the relay antenna intersect each other, and the RFID tag is directly coupled to or capacitively coupled with the relay antenna.
Assigned to Murata Manufacturing Co., Ltd., Nagaokakyo, Japan.
Filed: 5/18/18
Issued: 6/14/22
A sanitary article for communicating a moisture indication signal, the sanitary article having a front face, a crotch portion and a back face, the sanitary article comprising: a moisture-absorptive material; a moisture-detecting RFID tag disposed adjacent to the moisture-absorptive material disposed on the crotch portion or the back face and including an RFIC element; and an antenna element connected to the RFIC element; and a relay antenna connected to the moisture-detecting RFID tag on the crotch portion or the back face and extended from the crotch portion or the back face to the front face of the sanitary article, the relay antenna elongated in the sanitary article to extend a communication range by relaying an output of the moisture-detecting RFID tag, wherein the moisture-detecting RFID tag is configured to vary an output of a communication distance based on a variation of an amount of moisture in the moisture-absorptive material, and wherein the RFID tag and the relay antenna intersect each other, and the RFID tag is directly coupled to or capacitively coupled with the relay antenna.