Trial of free-space parallel transmission system based on optical ZCZ-CDMA system. - Takahiro Matsumoto; Yasuaki Ohira; Satoshi Muranaga; Hideyuki Torii; Yuta Ida; Shinya Matsufuji (IWSDA, 2013)

A Development of a Questionnaire System for Institutional Research. - Yasuaki Ohira; Kahori Ogashiwa; Satoshi Muranaga; Takahiro Matsumoto; Hiroo Naitoh (IIAI-AAI, 2016)