A very fast FFT spectrum analyzer for radio astronomy. - Yoshihiro Chikada; Masato Ishiguro; Hisashi Hirabayashi; Masaki Morimoto; Koh-Ichiro Morita; Tomio Kanzawa; Hiroyuki Iwashita; Kiyoshi Nakazima; Shin-ichi Ishikawa; Toshikazu Takahashi; Kazuyuki Handa; Takashi Kasuga; et al. (ICASSP, 1986)

Document retrieval system tolerant of segmentation errors of document images. - Takeshi Nagasaki; Toshikazu Takahashi; Katsumi Marukawa (IWFHR, 2004)

Camera-based Kanji OCR for Mobile-phones: Practical Issues. - Masashi Koga; Ryuji Mine; Tatsuya Kameyama; Toshikazu Takahashi; Masahiro Yamazaki; Teruyuki Yamaguchi (ICDAR, 2005)

Recognition of Character Strings Printed with Large Alignment Error. - Minenobu Seki; Toshikazu Takahashi; Takeshi Nagasaki; Hiroshi Shinjo; Katsumi Marukawa (MVA, 2005)

Development of Template-Free Form Recognition System. - Junichi Hirayama; Hiroshi Shinjo; Toshikazu Takahashi; Takeshi Nagasaki (ICDAR, 2011)