| 2017 | HCI | Change in the Relationship Between the Elderly and Information Support Robot System Living Together. | Misato Nihei, Yuko Nishiura, Ikuko Mamiya, Hiroaki Kojima, Ken Sadohara, Shinichi Ohnaka, Minoru Kamata, Takenobu Inoue |
| 2013 | ICPRAM | Experimental Evaluation of Probabilistic Similarity for Spoken Term Detection. | Shi-wook Lee, Hiroaki Kojima, Kazuyo Tanaka, Yoshiaki Itoh |
| 2011 | AINA | Proposal of the Disaster-Relief Training System Using the Electronic Triage Tag. | Hiroaki Kojima, Kentaro Nagahashi, Ken-ichi Okada |
| 2011 | UIST | Injured person information management during second triage. | Yuki Takahashi, Hiroaki Kojima, Ken-ichi Okada |
| 2009 | Interspeech | Tied-state multi-path HMnet model using three-domain successive state splitting. | Soo-Young Suk, Hiroaki Kojima |
| 2007 | Interspeech | Noise robust speech recognition for voice driven wheelchair. | Akira Sasou, Hiroaki Kojima |
| 2007 | Interspeech | Voice activated powered wheelchair with non-voice rejection algorithm. | Soo-Young Suk, Hiroaki Kojima |
| 2006 | PERCOM | A Design of a Molecular Communication System for Nanomachines Using Molecular Motors. | Michael J. Moore, Akihiro Enomoto, Tadashi Nakano, Ryota Egashira, Tatsuya Suda, Atsushi Kayasuga, Hiroaki Kojima, Hitoshi Sakakibara, Kazuhiro Oiwa |
| 2003 | Interspeech | Mixed-lingual spoken word recognition by using VQ codebook sequences of variable length segments. | Hiroaki Kojima, Kazuyo Tanaka |
| 2002 | ICPR | Constructing Speech Processing Systems on Universal Phonetic Codes Accompanied with Reference Acoustic Models. | Kazuyo Tanaka, Hiroaki Kojima, Nahoko Fujimura, Yoshiaki Itoh |
| 2000 | Interspeech | Extracting phonological chunks based on piecewise linear segment lattices. | Hiroaki Kojima, Kazuyo Tanaka |
| 2000 | Interspeech | A speech recognition method with a language-independent intermediate phonetic code. | Kazuyo Tanaka, Hiroaki Kojima |
| 1998 | Interspeech | Generalized phone modeling based on piecewise linear segment lattice. | Hiroaki Kojima, Kazuyo Tanaka |
| 1998 | Interspeech | Speech recognition based on the distance calculation between intermediate phonetic code sequences in symbolic domain. | Kazuyo Tanaka, Hiroaki Kojima |
| 1997 | ICASSP | A method of extracting time-varying acoustic features effective for speech recognition. | Kazuyo Tanaka, Hiroaki Kojima |
| 1997 | Interspeech | Organizing phone models based on piecewise linear segment lattices of speech samples. | Hiroaki Kojima, Kazuyo Tanaka |
| 1994 | Interspeech | Generating phoneme models for forming phonological concepts. | Hiroaki Kojima, Kazuyo Tanaka, Satoru Hayamizu |
| 1992 | Interspeech | Formation of phonological concept structures from spoken word samples. | Hiroaki Kojima, Kazuyo Tanaka, Satoru Hayamizu |