3-D object recognition and description: A method for the visually impaired using an invisible bar code. - Hideo Makino; Fumihito Morishita; Yoshio Abe; Shirou Yamamiya; Masaru Hasegawa; Ikuo Ishii; Makoto Nakashizuka (Syst. Comput. Jpn., 1998)

Robust vector control of induction motors using full-order observer in consideration of core loss. - Masaru Hasegawa; Shinichi Furutani; Shinji Doki; Shigeru Okuma (IEEE Trans. Ind. Electron., 2003)

Robust-adaptive-observer design based on γ-positive real problem for sensorless induction-motor drives. - Masaru Hasegawa (IEEE Trans. Ind. Electron., 2006)

A design method of full-order extended electromotive force observer for sensorless control of IPMSM. - Mutuwo Tomita; Masaru Hasegawa; Keiju Matsui (AMC, 2010)

Analysis and improvement of bilateral chopper having current resonant soft-switch. - Keiju Matsui; Susumu Tanaka; Masaru Hasegawa (ISCAS, 2010)

A flux-weakening control method on Maximum Torque Control frame for IPMSM position sensorless control. - Atsushi Matsumoto; Masaru Hasegawa; Shinji Doki (IECON, 2012)

A novel correction method for current control of PMSM operating within voltage saturation region. - Atsushi Matsumoto; Shinji Doki; Masaru Hasegawa (IECON, 2013)

A new design method of full-order extended electromotive force observer for position sensorless control of IPMSM. - Saki Nohara; Mutuwo Tomita; Masaru Hasegawa; Shinji Doki; Shinji Kato (IECON, 2013)

Discussions on various chopper circuits for power factor corrections. - Yuhta Ando; Keiju Matsui; Masaru Hasegawa (ISIE, 2013)

Various voltage equalizers for EDLCs using CW circuit. - Hlaing Kyi Pyar Khant; Kouhei Yamakita; Keiju Matsui; Masaru Hasegawa (ISIE, 2013)

Discussion on resonant converter employing zero current switch with saturable inductor. - Keisuke Kuwabara; Keiju Matsui; Takanori Asaba; Masaru Hasegawa (ISIE, 2013)

Simple and concise photovoltaic power generation system installed in veranda. - Keiju Matsui; Eiji Oishi; Mikio Yasubayashi; Yasutaka Kawata; Masayoshi Umeno; Hideo Uchida; Masaru Hasegawa (APCCAS, 2014)

Pursuit of simple power conditioner for photovoltaic small power generation. - Keiju Matsui; Eiji Oishi; Yasutaka Kawata; Mikio Yasubayashi; Masayoshi Umeno; Hideo Uchida; Masaru Hasegawa (IECON, 2015)

Evaluation of direct position estimation based on α-β axes inductance information for IPMSM sensorless control systems. - Toshiki Suzuki; Shinji Doki; Masaru Hasegawa (IECON, 2015)

Extremely precise position estimation for sensorless control of permanent magnet synchronous motors using all-pass filters and band-pass filters. - Ken'ichiro Tanaka; Atsushi Matsumoto; Masaru Hasegawa (ICIT, 2016)

Current control system using voltage phase reference filter in inverter overmodulation range for IPMSM. - Yosuke Nakayama; Atsushi Matsumoto; Masaru Hasegawa; Shinji Doki (IECON, 2016)

Proposal of novel inverter constructed by minimum circuit components. - Keiju Matsui; Eiji Oishi; Yasutaka Kawata; Mikio Yasubayashi; Masayoshi Umeno; Hideo Uchida; Masaru Hasegawa (GCCE, 2017)

Improvement of Position Sensorless Control Performance for High Speed PMSM with All-pass Filters. - Yuma Ishikawa; Masaru Hasegawa (ICIT, 2019)

Stator resistance identification for induction motors using DyCE principle based adaptive flux observer. - Naoki Kawamura; Kang-Zhi Liu 001; Tadanao Zanma; Masaru Hasegawa (IECON, 2019)

Torque Ripple Reduction of IPMSM Considering Compensation of Nonlinearities of Magnetic Characteristics. - Hiroyasu Akatsuka; Masaru Hasegawa; Shinji Doki (IECON, 2020)