ALEXANDRIA, Va., March 17 -- United States Patent no. 12,579,400, issued on March 17, was assigned to TOPPAN HOLDINGS INC. (Tokyo).

"Inlet and card medium" was invented by Yukiko Katano (Tokyo), Shin Kataoka (Tokyo) and Shigeki Minemura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An inlet embedded in a card medium, the inlet including: an exposed component at least partially exposed on a front surface of the card medium; a circuit board including a board wiring part to which the exposed component is bonded on a front surface side, the circuit board being provided closer to a back surface of the card medium than the exposed component is; and a sheet circuit board provided closer to the front surface...