Robust feedforward track following control system for an optical disk drive system. - Kiyoshi Ohishi; Yoshinori Hayakawa; Hitoslii Yanagisawa; Daiichi Koide; Haruki Tokumaru (ACC, 2003)

Robust feedforward tracking servo system considering force disturbance for optical disk recording system. - Kiyoshi Ohishi; Kazuyoshi Kuramochi; Toshimasa Miyazaki; Daiichi Koide; Haruki Tokumaru (CCA, 2004)

Robust tracking servo system considering force disturbance for the optical disk recording system. - Kiyoshi Ohishi; Toshimasa Miyazaki; Koichi Inomata; Hitoshi Yanagisawa; Daiichi Koide; Haruki Tokumaru (IEEE Trans. Ind. Electron., 2006)

Zero phase error tracking control system with multi harmonics disturbance suppression loop. - Yoshiya Kamigaki; Kiyoshi Ohishi; Yuta Nabata; Toshimasa Miyazaki; Daiichi Koide; Yoshimichi Takano; Haruki Tokumaru (AMC, 2010)

Robust tracking control based on triple compensation loop for high speed optical disk. - Yuta Nabata; Yoshiya Kamigaki; Kiyoshi Ohishi; Toshimasa Miyazaki; Daiichi Koide; Yoshimichi Takano; Haruki Tokumaru (AMC, 2010)

Focusing control system for suppressing multi-harmonic disturbances in high speed optical disk systems. - Tatsuya Nakazaki; Tokoku Ogata; Kiyoshi Ohishi; Toshimasa Miyazaki; Daiichi Koide; Yoshimichi Takano; Haruki Tokumaru (AMC, 2012)