Touching 4D Objects with 3D Tactile Feedback. - Haruo Igarashi; Hideyuki Sawada (HSI, 2021)

4D Exploring System for Intuitive Understanding of 4D Space by Extending Familiar 3D Interfaces. - Haruo Igarashi; Hideyuki Sawada (ICAT-EGVE, 2023)

Pain intensity control in virtual reality via modulated cooling rates in thermal grill illusion. - Shinnosuke Hori; Renke Liu; Haruo Igarashi; Hideyuki Sawada (Frontiers Virtual Real., 2025)