The NAND gate is a circuit that outputs '0' when both inputs are '1', and '0' otherwise, so if you arrange the NAND gate as follows, the Invert circuit is completed.

NAND and NOR gates demonstrated by spin waves using magnetic oxides. Home > Press Releases. JST Press Release. August 11, 2017 Japan Science and Technology Agency (JST) 5-3 ... 5-3, Yonbancho, Chiyoda ...