US 12,265,875 B2
RFID tag for rubber product and method of manufacturing RFID tag for rubber product
Shiro Sugimura, Kanazawa (JP); and Tatsuji Niwata, Kanazawa (JP)
Assigned to PHOENIX SOLUTION CO., LTD., Kanazawa (JP)
Appl. No. 18/251,100
Filed by PHOENIX SOLUTION CO., LTD., Kanazawa (JP)
PCT Filed Feb. 12, 2021, PCT No. PCT/JP2021/005159
§ 371(c)(1), (2) Date Apr. 28, 2023,
PCT Pub. No. WO2022/091440, PCT Pub. Date May 5, 2022.
Claims priority of application No. 2020-183072 (JP), filed on Oct. 30, 2020.
Prior Publication US 2024/0005123 A1, Jan. 4, 2024
Int. Cl. G06K 19/077 (2006.01); H01Q 1/22 (2006.01)
CPC G06K 19/07773 (2013.01) [H01Q 1/2208 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An RFID tag for a rubber product, the RFID tag comprising:
a coupling transformer, an RF chip connected to a secondary side of the coupling transformer, a printed circuit board on which the RF chip is mounted, and an antenna, wherein
the antenna comprises a coil section, a first element extending from one end of the coil section, and a second element extending from another end of the coil section in parallel with the first element and shorter than the first element,
the coil section has fewer windings than a coil section on the secondary side of the coupling transformer, and
the printed circuit board is held in a gap between strands of the coil section such that the coil section forms a primary side of the coupling transformer.