| 2016 | ISCAS | 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 |
| 2015 | ISCAS | 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 Alarcn, Hiroo Sekiya |
| 2014 | ISCAS | Analytical design procedure for resonant inductively coupled wireless power transfer system with class-E | Tomoharu Nagashima, Kazuhide Inoue, Xiuqin Wei, Elisenda Bou, Eduard Alarcn, Marian K. Kazimierczuk, Hiroo Sekiya |
| 2014 | IECON | Numerical algorithm for distribution-map derivations of switching converters. | Yuta Yamada, Tomoharu Nagashima, Yoshifumi Ibuki, Yoshiki Fukumoto, Hiroo Sekiya |
| 2013 | IECON | 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 |
| 2013 | ISCAS | Effect of MOSFET parasitic capacitances on EER transmitter with class-E amplifier. | Xiuqin Wei, Tomoharu Nagashima, Hiroo Sekiya, Tadashi Suetsugu |
| 2011 | ISCAS | Power conversion efficiency of class-E power amplifier outside nominal operation. | Tomoharu Nagashima, Xiuqin Wei, Hiroo Sekiya, Marian K. Kazimierczuk |