2.6 GHz band satellite ISDB system for mobile reception. - Tomohiro Saito; Kenji Murakami; Hitoshi Nakagawa; Hayato Nishida (IEEE Trans. Broadcast., 1996)

Application of phased-array antenna technology to the 21 GHz broadcasting satellite for rain-attenuation compensation. - Yutaka Kawaguchi; Hitoshi Nakagawa; Shoji Tanaka; Tetsuya Yamada (ICC, 2002)

The Studies to Develop Integrated Database for Supporting Inter-School Activities. - Hitoshi Nakagawa (ICCE, 2002)

Pupils' Attitudes towards Using Cellular Phones for Learning Activities. - Tadashi Inagaki; Yuki Kobayashi; Hitoshi Nakagawa (ICCE, 2005)