| 1994 | ICASSP | A multimodal, keyword-based spoken dialogue system-MultiksDial. | Hiroshima Matsu'ura, Yasuyuki Masai, Jun'ichi Iwasaki, Shin'ichi Tanaka, Hiroyuki Kamio, Tsuneo Nitta |
| 1994 | Interspeech | A keyword-spotting unit for speaker-independent spontaneous speech recognition. | Yasuyuki Masai, Jun'ichi Iwasaki, Shin'ichi Tanaka, Tsuneo Nitta, Masahiro Yao, Tomohiro Onogi, Akira Nakayama |
| 1993 | Interspeech | A multimodal directory guidance system with an interactive mechanism. | Tsuneo Nitta, Yasuyuki Masai, Jun'ichi Iwasaki, Shin'ichi Tanaka, Bi Karwo, Hiroshi Matsu'ura |
| 1992 | ICASSP | Representing dynamic features of phonetic segment in an orthogonalized codebook of HMM based speech recognition system. | Tsuneo Nitta, Jun'ichi Iwasaki, Yasuyuki Masai, Hiroshi Matsu'ura |
| 1991 | Interspeech | Speaker independent word recognition using HMMs with an orthogonalized phonetic segment codebook. | Tsuneo Nitta, Jun'ichi Iwasaki, Hiroshi Matsu'ura |
| 1990 | Interspeech | Speaker independent word recognition system based on the structured transition network of phonetic segments. | Nobuo Sugi, Jun'ichi Iwasaki, Hiroshi Matsu'ura, Tsuneo Nitta, Akira Fukumine, Akira Nakayama |