| 1997 | Interspeech | A two-channel adaptive microphone array with target tracking. | Yoshifumi Nagata, Hiroyuki Tsuboi |
| 1996 | Interspeech | A new discourse structure model for spontaneous spoken dialogue. | Tetsuro Chino, Hiroyuki Tsuboi |
| 1992 | ICASSP | Keyword-spotting in noisy continuous speech using word pattern vector subabstraction and noise immunity learning. | Yoichi Takebayashi, Hiroyuki Tsuboi, Hiroshi Kanazawa |
| 1992 | ICASSP | A real-time task-oriented speech understanding system using keyword-spotting. | Hiroyuki Tsuboi, Yoichi Takebayashi |
| 1992 | Interspeech | A real-time speech dialogue system using spontaneous speech understanding. | Yoichi Takebayashi, Hiroyuki Tsuboi, Yoichi Sadamoto, Hideki Hashimoto, Hideaki Shinchi |
| 1991 | ICASSP | A robust speech recognition system using word-spotting with noise immunity learning. | Yoichi Takebayashi, Hiroyuki Tsuboi, Hiroshi Kanazawa |
| 1990 | Interspeech | An accelerator for high-speed spoken word-spotting and noise immunity learning system. | Hiroyuki Tsuboi, Hiroshi Kanazawa, Yoichi Takebayashi |
| 1988 | ICASSP | A large vocabulary word recognition system based on syllable recognition and nonlinear word matching. | Hiroshi Matsu'ura, Tsuneo Nitta, Shoichi Hirai, Yoichi Takebayashi, Hiroyuki Tsuboi, Hiroshi Kanazawa |
| 1986 | ICASSP | Speaker-adaptive connected syllable recognition based on the multiple similarity method. | Hiroyuki Tsuboi, Yoichi Takebayashi, Hiroshi Matsu'ura, Tsuneo Nitta, Shouichi Hirai |
| 1982 | ICASSP | Development of Japanese voice-activated word processor using isolated monosyllable recognition. | Tsuneo Nitta, T. Murata, Hiroyuki Tsuboi, K. Takeda, T. Kawada, Sadakazu Watanabe |