| 2023 | ICCE | Enhancing Mobile Learning App for Revamped Blended Learning Class in Beginner's Chinese Course. | Yuichi Ohkawa, Xiumin Zhao, Takashi Mitsuishi, Wen Gui, Xuan Wang |
| 2014 | ICCE | A Shareable Whiteboard System for Distance Collaborative Learning which Enables Instruction for Multiple Groups of Students. | Yuichi Ohkawa, Kazuki Watanabe, Takashi Mitsuishi |
| 2013 | HCI | Study on Effects of Text Decoration for a Text Based Communication Tool in Education. | Masateru Hishina, Katsuaki Miike, Nobutake Asaba, Satoru Murakami, Yuichi Ohkawa, Takashi Mitsuishi |
| 2011 | HCI | A Development of Web-Based Player for Instructions Recorded with the Electronic Blackboard System IMPRESSION. | Yuichi Ohkawa, Takashi Mitsuishi |
| 2010 | ICASSP | Aspect-model-based reference speaker weighting. | Seongjun Hahm, Yuichi Ohkawa, Masashi Ito, Motoyuki Suzuki, Akinori Ito, Shozo Makino |
| 2004 | Interspeech | Speaker adaptation method for CALL system using bilingual speakers' utterances. | Motoyuki Suzuki, Hirokazu Ogasawara, Akinori Ito, Yuichi Ohkawa, Shozo Makino |
| 2003 | Interspeech | An optimized multi-duration HMM for spontaneous speech recognition. | Yuichi Ohkawa, Akihiro Yoshida, Motoyuki Suzuki, Akinori Ito, Shozo Makino |