Public Key Cryptosystem using a reciprocal number with the same Intractability as Factoring a Large number. - Kaoru Kurosawa; Toshiya Itoh; Masashi Takeuchi (Cryptologia, 1988)

Generation of natural response timing using decision tree based on prosodic and linguistic information. - Masashi Takeuchi; Norihide Kitaoka; Seiichi Nakagawa (INTERSPEECH, 2003)

Response Timing Detection Using Prosodic and Linguistic Information for Human-friendly Spoken Dialog Systems. - Norihide Kitaoka; Masashi Takeuchi; Ryota Nishimura; Seiichi Nakagawa (Inf. Media Technol., 2006)