| 2007 | HCI | KaLeSy-CJ: Kanji Learning System Focusing on Differences Between Chinese and Japanese. | Sa Lu, Naoko Yamashita, Hiroyuki Tominaga, Toshihiro Hayashi, Toshinori Yamasaki |
| 2006 | ICALT | Japanese Learning System for Native Chinese Speakers focusing on Differences between Chinese and Japanese. | Sa Lu, Naoko Yamashita, Hiroyuki Tominaga, Toshihiro Hayashi, Toshinori Yamasaki |
| 2005 | ICCE | DrilLs-M: Multimedia Testing System with Operation-Style Answering - Application to Kanji Letter Shape Learning -. | Hiroyuki Tominaga, Yu Kinugasa, Naoko Yamashita, Toshihiro Hayashi, Toshinori Yamasaki |
| 2005 | ICALT | Operation-Style Answering in Multimedia Testing System DrilLs-M for Kanji Letter Shape Learning. | Yu Kinugasa, Naoko Yamashita, Toshihiro Hayashi, Hiroyuki Tominaga, Toshinori Yamasaki |
| 2005 | ICALT | Japanese Learning System for Chinese Native Speakers - Development of Database for Learning Kanji Which Have Difference between Chinese and Japanese. | Sa Lu, Naoko Yamashita, Hiroyuki Tominaga, Toshihiro Hayashi, Toshinori Yamasaki |
| 2002 | ICCE | Internet-Based Japanese Language Learning System for Handwriting Kanji Characters Beautifully. | Kazuaki Ando, Toshinori Yamasaki, Naoko Yamashita |