Bi-directional multimedia satellite communication system employing superposed transmission. - Hideki Toshinaga; Kiyoshi Kobayashi; Kohei Ohata; Masazumi Ueba; Hideki Mizuno (GLOBECOM, 2001)

On-frequency gap-filler using adaptive tracking null controller for next generation mobile satellite communication systems. - Tomihiko Yoshida; Kiyoshi Kobayashi; Kohei Ohata; Masazumi Ueba (PIMRC, 2005)

Seamless Symbol Rate Switching Scheme for Multi-Rate FDMA Modem. - Fumihiro Yamashita; Kiyoshi Kobayashi; Kohei Ohata; Masazumi Ueba (IEICE Trans. Commun., 2006)

Highly Accurate Inclinometer Robust to Ultralow-Frequency Acceleration Disturbances and Applications to Autotracking Antenna Systems for Vessels. - Tomihiko Yoshida; Kohei Ohata; Masazumi Ueba (IEEE Trans. Instrum. Meas., 2009)