TOA-based lateral distance measurement system using UWB impulse radio. - Keiichi Nakamura; S. Kobayashiy; Hisanori Matsumoto; Noboru Koshizuka; Ken Sakamura (WiMob, 2010)

Variable beamwidth shorted patch antenna array for indoor positioning. - Hisanori Matsumoto; Makoto Tanikawara; Tomohisa Kohiyama (RWS, 2014)

Methods for improving IMES transmitters: Transmission diversity, variable beamwidth antenna, and leaky coaxial cable. - Kenjiro Fujii; Takamasa Kawaguchi; Hisanori Matsumoto; Makoto Tanikawara; Takashi Toyama; Yoshihiro Sakamoto; Wei Wang 066; Hiroaki Arie; Alexander Schmitz; Shigeki Sugano (SII, 2015)

Development of Toys for Determining Behavioral Imitation During Parent-Child Interactions. - Takashi Numata; Masashi Kiguchi; Hisanori Matsumoto; Atsushi Maki; Masako Kawasaki; Toshiko Kamo (CollabTech, 2022)