Power conversion efficiency of class-E power amplifier outside nominal operation. - Tomoharu Nagashima; Xiuqin Wei; Hiroo Sekiya; Marian K. Kazimierczuk (ISCAS, 2011)

Inductively coupled wireless power transfer with class-DE power amplifier. - Tomoharu Nagashima; Xiuqin Wei; Tadashi Suetsugu; Hiroo Sekiya (APCCAS, 2012)

Design of Class-EM Oscillator With Second Harmonic Injection. - Ryosuke Miyahara; Xiuqin Wei; Tomoharu Nagashima; Takuji Kousaka; Hiroo Sekiya (IEEE Trans. Circuits Syst. I Regul. Pap., 2012)

Push-Pull Class-EM Power Amplifier for Low Harmonic-Contents and High Output-Power Applications. - Xiuqin Wei; Shingo Kuroiwa; Tomoharu Nagashima; Marian K. Kazimierczuk; Hiroo Sekiya (IEEE Trans. Circuits Syst. I Regul. Pap., 2012)

Inductively coupled wireless power transfer with class-E2 DC-DC converter. - Tomoharu Nagashima; Kazuhide Inoue; Xiuqin Wei; Elisenda Bou; Eduard Alarcón; Hiroo Sekiya (ECCTD, 2013)

Design of high-efficiency inductive-coupled wireless power transfer system with class-DE transmitter and class-E rectifier. - Kazuhide Inoue; Tomoharu Nagashima; Xiuqin Wei; Hiroo Sekiya (IECON, 2013)

Effect of MOSFET parasitic capacitances on EER transmitter with class-E amplifier. - Xiuqin Wei; Tomoharu Nagashima; Hiroo Sekiya; Tadashi Suetsugu (ISCAS, 2013)

High-frequency high-efficiency resonant converter with class-EM inverter and class-E rectifier. - Hiroo Sekiya; Xiuqin Wei; Tomoharu Nagashima (MWSCAS, 2013)

Class E2 resonant non-radiative Wireless Power Transfer link: A design-oriented joint circuit-system co-characterization approach. - Elisenda Bou; Tomoharu Nagashima; Hiroo Sekiya; Eduard Alarcón (SSD, 2014)

Analytical design procedure for resonant inductively coupled wireless power transfer system with class-DE inverter and class-E rectifier. - Tomoharu Nagashima; Xiuqin Wei; Hiroo Sekiya (APCCAS, 2014)

Numerical algorithm for distribution-map derivations of switching converters. - Yuta Yamada; Tomoharu Nagashima; Yoshifumi Ibuki; Yoshiki Fukumoto; Hiroo Sekiya (IECON, 2014)

Analytical design procedure for resonant inductively coupled wireless power transfer system with class-E2 DC-DC converter. - Tomoharu Nagashima; Kazuhide Inoue; Xiuqin Wei; Elisenda Bou; Eduard Alarcón; Marian K. Kazimierczuk; Hiroo Sekiya (ISCAS, 2014)

Locking Range Derivations for Injection-Locked Class-E Oscillator Applying Phase Reduction Theory. - Tomoharu Nagashima; Xiuqin Wei; Hisa-Aki Tanaka; Hiroo Sekiya (IEEE Trans. Circuits Syst. I Regul. Pap., 2014)

Analysis and Design of Class-𝔼𝕄 Power Amplifier. - Xiuqin Wei; Tomoharu Nagashima; Marian K. Kazimierczuk; Hiroo Sekiya; Tadashi Suetsugu (IEEE Trans. Circuits Syst. I Regul. Pap., 2014)

Waveform Equations, Output Power, and Power Conversion Efficiency for Class-E Inverter Outside Nominal Operation. - Tomoharu Nagashima; Xiuqin Wei; Tadashi Suetsugu; Marian K. Kazimierczuk; Hiroo Sekiya (IEEE Trans. Ind. Electron., 2014)

Analytical design for resonant inductive coupling wireless power transfer system with class-E inverter and class-DE rectifier. - Tomoharu Nagashima; Xiuqin Wei; Elisenda Bou; Eduard Alarcón; Hiroo Sekiya (ISCAS, 2015)

Design of a DC-DC Converter With Phase-Controlled Class-D ZVS Inverter. - Yuta Yamada; Tomoharu Nagashima; Yoshifumi Ibuki; Yoshiki Fukumoto; Tatsuya Ikenari; Hiroo Sekiya (IEEE J. Emerg. Sel. Topics Circuits Syst., 2015)

Analysis and Design of Loosely Inductive Coupled Wireless Power Transfer System Based on Class-E2 DC-DC Converter for Efficiency Enhancement. - Tomoharu Nagashima; Xiuqin Wei; Elisenda Bou; Eduard Alarcón; Marian K. Kazimierczuk; Hiroo Sekiya (IEEE Trans. Circuits Syst. I Regul. Pap., 2015)

Design procedure for wireless power transfer system with inductive coupling-coil optimizations using PSO. - Takumi Noda; Tomoharu Nagashima; Xiuqin Wei; Marian K. Kazimierczuk; Hiroo Sekiya (ISCAS, 2016)

Steady-State Analysis of Isolated Class-E2 Converter Outside Nominal Operation. - Tomoharu Nagashima; Xiuqin Wei; Elisenda Bou; Eduard Alarcón; Marian K. Kazimierczuk; Hiroo Sekiya (IEEE Trans. Ind. Electron., 2017)

Development of multi-stage optical variable attenuator system and its control method for wafer inspection system. - Tomoharu Nagashima; Hisaaki Kanai (IEICE Electron. Express, 2023)