| 2026 | HCI | An Autonomous Fixed-Location Voice Agent for Daily Cognitive Monitoring: System Design and Pilot Validation. | Takashi Makiishi, Tsuneo Jozen, Hideo Nakamura, Takuya Niikawa |
| 2026 | LREC | Developing a Guideline for the Labovian-Structural Analysis of Oral Narratives in Japanese. | Amane Watahiki, Tomoki Doi, Akari Kikuchi, Hiroshi Ohata, Yuki I. Nakata, Takuya Niikawa, Taiga Shinozaki, Hitomi Yanaka |
| 2025 | CogSci | Bridging Perception and Language: A Systematic Benchmark for LVLMs' Understanding of Amodal Completion Reports. | Amane Watahiki, Tomoki Doi, Taiga Shinozaki, Satoshi Nishida, Takuya Niikawa, Katsunori Miyahara, Hitomi Yanaka |
| 2025 | HCI | Development of a Game System for Enhancing Cognitive Reserve. | Takashi Makiishi, Tsuneo Jozen, Hideo Nakamura, Takuya Niikawa, Ryosuke Kawachi |
| 2002 | Interspeech | Frequency dependence of vocal-tract length. | Takuya Niikawa, Takanori Ando, Masafumi Matsumura |
| 2000 | Interspeech | Measurement of palatolingual contact pressure and tongue force using a force-sensor-mounted palatal plate. | Masafumi Matsumura, Takuya Niikawa, Taku Torii, Hitoshi Yamasaki, Hisanaga Hara, Takashi Tachimura, Takeshi Wada |
| 2000 | Interspeech | Modeling of a speech production system based on MRI measurement of three-dimensional vocal tract shapes during fricative consonant phonation. | Takuya Niikawa, Masafumi Matsumura, Takashi Tachimura, Takeshi Wada |
| 1998 | Interspeech | Cantilever-type force-sensor-mounted palatal plate for measuring palatolingual contact stress and pattern during speech phonation. | Masafumi Matsumura, Takuya Niikawa, Takao Tanabe, Takashi Tachimura, Takeshi Wada |
| 1998 | Interspeech | FEM analysis of aspirated air flow in three-dimensional vocal tract during fricative consonant phonation. | Takuya Niikawa, Masafumi Matsumura, Takashi Tachimura, Takeshi Wada |