Postprocessing for Character Recognition Using Keyword Information. - Hisao Niwa; Kazuhiro Kayashima; Yasuharu Shimeki (MVA, 1992)

A State Traversal Algorithm Using a State Covariance Matrix. - Akira Motohara; Toshinori Hosokawa; Michiaki Muraoka; Hidetsugu Maekawa; Kazuhiro Kayashima; Yasuharu Shimeki; Seichi Shin (DAC, 1993)

Character recognition system with cooperation of pattern and symbolic processing. - Hisao Niwa; Hiroshi Yamamoto; Yoshihiro Kojima; Yasuharu Shimeki; Susumu Maruno; Kazuhiro Kayashima (Syst. Comput. Jpn., 1995)

Net-accessible pet-type robot for aged people's welfare. - Toshiyuki Maeda; Kazumi Yoshida; Hisao Niwa; Kazuhiro Kayashima; Yuji Maeda (CIRA, 2003)

Pet-Type Robot Communication System for Mental Care of Single-Resident Elderies. - Toshiyuki Maeda; Kazumi Yoshida; Hisao Niwa; Kazuhiro Kayashima (ICINCO (2), 2004)