Our group aims to create ionic devices that realized a variety of novel functions through solid-state ionics and nanotechnology. Fig. 1 shows our research guidelines. By utilizing ionic nanoarchitectonics, based the on local ion transfer in ionic conductors, we create ionic devices that enable novel functions and high performance that is not possible with conventional semiconductor devices. Examples include atomic switches, artificial five-sense devices, decision-making devices, and superconducting devices that can modulate transition temperature. Furthermore, based on basic development of these ionic devices, we will actively promote practical applications through joint research with related companiess. In particular, we aim to create ionic neuromorphic devices and circuits that mimic the intelligence functions of human brain and five senses, and in future to develop technologies for AI systems for information processing terminals and autonomous robots using these devices and circuits through external collaboration.