Gain- and offset-compensated non-inverting SC circuits. - Xaojing Shi; Hirokazu Matsumoto; Kenji Murao (ISCAS, 2000)

Portable I2-stabilized Nd: YAG laser for international comparisons. - Feng-Lei Hong; Jun Ishikawa; Zhi-Yi Bi; Jing Zhang; Katuo Seta; Atsushi Onae; Jun Yoda; Hirokazu Matsumoto (IEEE Trans. Instrum. Meas., 2001)

Comparison of independent optical frequency measurements using a portable iodine-stabilized Nd: YAG laser. - Feng-Lei Hong; Jun Ishikawa; Kazuhiko Sugiyama; Kazuhik Onae; Hirokazu Matsumoto; Jun Ye; John L. Hall (IEEE Trans. Instrum. Meas., 2003)

Stability degradation factors evaluated by phase noise measurement in an optical-microwave frequency link using an optical frequency comb. - Hajime Inaba; Shinya Yanagimachi; Feng-Lei Hong; Atsushi Onae; Yasuki Koga; Hirokazu Matsumoto (IEEE Trans. Instrum. Meas., 2005)

Optical Frequency Synthesis From a Cryogenic Sapphire Oscillator Using a Fiber-Based Frequency Comb. - Ken-ichi Watabe; Hajime Inaba; Ken'ichiro Okumura; Feng-Lei Hong; John G. Hartnett; Clayton R. Locke; Giorgio Santarelli; Shinya Yanagimachi; Kaoru Minoshima; Takeshi Ikegami; Atsushi Onae; Shin-ichi Ohshima; et al. (IEEE Trans. Instrum. Meas., 2007)

Frequency Measurement Capability of a Fiber-Based Frequency Comb at 633 nm. - Hajime Inaba; Yoshiaki Nakajima; Feng-Lei Hong; Kaoru Minoshima; Jun Ishikawa; Atsushi Onae; Hirokazu Matsumoto; Michael Wouters; Bruce Warrington; Nicholas Brown (IEEE Trans. Instrum. Meas., 2009)

Effect of Time Lag in Response to Switching Signal in Interrupted Electric Circuit. - Hiroyuki Asahara; Yutaka Izumi; Yusuke Tone; Hirokazu Matsumoto; Takuji Kousaka (Circuits Syst. Signal Process., 2014)

A Boost Driver With an Improved Charge-Pump Circuit. - Hirokazu Matsumoto; Yasuhiko Neba (IEEE Trans. Ind. Electron., 2014)

Trifoliate Three-Phase Contactless Power Transformer in Case of Winding-Alignment. - Hirokazu Matsumoto; Yasuhiko Neba; Hideyasu Iura; Daisuke Tsutsumi; Kouichi Ishizaka; Ryozo Itoh (IEEE Trans. Ind. Electron., 2014)

Automatic Recording Absolute Length-Measuring System with Fast Optical-Comb Fiber Interferometer. - Hirokazu Matsumoto; Kiyoshi Takamasu (Int. J. Autom. Technol., 2015)

Variable-Form Carrier-Based PWM for Boost-Voltage Motor Driver With a Charge-Pump Circuit. - Hirokazu Matsumoto; Yasuhiko Neba; Hiroyuki Asahara (IEEE Trans. Ind. Electron., 2015)

Contactless Power Transfer System for AGVs. - Hirokazu Matsumoto; Yojiro Shibako; Yasuhiko Neba (IEEE Trans. Ind. Electron., 2018)

Three-Phase Lines to Single-Phase Coil Planar Contactless Power Transformer. - Hirokazu Matsumoto; Yojiro Shibako; Yuta Shiihara; Ryoma Nagata; Yasuhiko Neba (IEEE Trans. Ind. Electron., 2018)

Receiver-Position-Based Unbalanced-Current Control for a Three- to Single-Phase Wireless Power Transfer System for AGVs. - Harushi Kanazawa; Haruto Uwai; Shun Kiuchi; Hirokazu Matsumoto (IEEE Trans. Ind. Electron., 2023)

Segment Switching Method of Three-Phase Wireless Power Transmitter for AGV. - Hirokazu Matsumoto; Harushi Kanazawa; Haruto Uwai; Ryuta Ishiwaka; Yuki Sato (IEEE Trans. Ind. Electron., 2024)