PROBLEM TO BE SOLVED: To provide an RFID module that can improve the durability of the RFID module while ensuring communication of the RFID module, and a pneumatic tire with the RFID module embedded.;SOLUTION: An RFID module includes: an IC substrate 21 that stores data; an antenna 22 that transmits and receives data; and a coating layer 23 that covers the antenna 22. Tan δ(20°C) at 20°C of the coating layer 23 is equal to or less than 0.2. The coating layer 23 is softer than the IC substrate 21.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2021,JPO&INPIT
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