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)

Silent subwoofer system using myoelectric stimulation to presents the acoustic deep bass experiences. - Keiichi Zempo; Ryo Kashiwabara; Naoto Wakatsuki; Koichi Mizutani (UIST (Adjunct Volume), 2022)

Myoelectric Stimulation Silent Subwoofer Which Presents the Deep Bass-Induced Body-Sensory Acoustic Sensation. - Keiichi Zempo; Ryo Kashiwabara; Naoto Wakatsuki; Koichi Mizutani (IEEE Access, 2025)