Hybrid Focus Using 70 and 40 kHz Ultrasound in Mid-Air Tactile Display. - Mitsuru Ito; Daisuke Wakuda; Yasutoshi Makino; Hiroyuki Shinoda 001 (AsiaHaptics, 2016)

High Spatial Resolution Midair Tactile Display Using 70 kHz Ultrasound. - Mitsuru Ito; Daisuke Wakuda; Seki Inoue; Yasutoshi Makino; Hiroyuki Shinoda 001 (EuroHaptics (1), 2016)