A Realization of Multiple Circuit Transfer Functions Using OTA-C Integrator Loop Structure. - Takao Tsukutani; Masami Higashimura; Yasutomo Kinugasa; Yasuaki Sumi; Yutaka Fukui (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

Current-mode universal biquad circuit using MO-OTAs and DO-CCII. - Takao Tsukutani; Yasuaki Sumi; Masami Higashimura; Yutaka Fukui (ISCAS (2), 2005)

A control system for electrical appliances using eye-gaze input. - Hidenobu Nakayama; Noboru Yabuki; Hiroyuki Inoue; Yasuaki Sumi; Takao Tsukutani (ISPACS, 2012)

DVCC-based current-mode IAFs without parasitic effects. - Takao Tsukutani; Noboru Yabuki (ICEIC, 2019)

A plus type CC-based current-mode universal biquadratic circuit. - Takao Tsukutani; Noboru Yabuki; Kazuharu Hashitsume (ISPACS, 2019)

Novel positive current output DVCC-based biquadratic circuit. - Takao Tsukutani; Noboru Yabuki; Kazuharu Hashitsume (ISPACS, 2021)