Retrospective Speech Balloons on Speech-Visible AR via Head-Mounted Display. - Tomoki Kurahashi; Ryota Sakuma; Keiichi Zempo; Koichi Mizutani; Naoto Wakatsuki (ISMAR Adjunct, 2018)

Audio Substituting Haptic System to Aware the Sound from Backwards. - Ryota Sakuma; Yuki Fujita; Keiichi Zempo (UIST (Adjunct Volume), 2019)

Directional Resolution of Haptic Display Consisted of a pair of Vibrators Embedded Earrings. - Ryo Kashiwabara; Ryota Sakuma; Keisuke Mizuno; Noko Kuratomo; Keiichi Zempo (GCCE, 2021)

AirHaptics: Vibrotactile Presentation Method using an Airflow from Audio Speakers of Smart Devices. - Madoka Ito; Ryota Sakuma; Hiroki Ishizuka; Takefumi Hiraki (VRST, 2022)

TactPrint: 3D Printing Lattice-based Tactile Displays with Optimized and Local Vibration. - Ryota Sakuma; Koya Narumi; Yoshihiro Kawahara; Takefumi Hiraki (CHI Extended Abstracts, 2024)