12-Gb/s decision circuit IC using AlGaAs/GaAS HBT technology. - Haruhiko Ichino; Noboru Ishihara; Yoshiki Yamauchi; Osaake Nakajima; Koichi Nagata; Takumi Nittono (IEEE J. Solid State Circuits, 1990)

A 15-GHz monolithic two-modulus prescaler. - Yoshiki Yamauchi; Osaake Nakajima; Koichi Nagata; Masahiro Hirayama (IEEE J. Solid State Circuits, 1991)

Mixed-reality web shopping system using panoramic view inside real store. - Masaya Ohta; Shunsuke Nagano; Koichi Nagata; Katsumi Yamashita (SIGGRAPH Asia Mobile Graphics and Interactive Applications, 2015)

Data compression for photo-based augmented reality on a tablet. - Fumiya Ishigami; Koichi Nagata; Masaya Ohta; Katsumi Yamashita (GCCE, 2016)

A product identification method for a mixed-reality web shopping system. - Hotaka Niwa; Koichi Nagata; Masaya Ohta; Katsumi Yamashita (GCCE, 2016)