@article{CTT100383665,
  author = {Shinsuke Yonetani and Hideaki Fujita and HIrofumi Akagi and Naotaka Okada},
  title = {Feasibility Study of a 6.6 kV, 1MW Transformerless BTB-Based Loop Controller -System Design and Zero-Sequence-Current Reduction-},
  journal = {Transactions of IEEJ},
  year = 2004,
}

@article{CTT100539361,
  author = {山下博史 and Jintakosonwit and Pichai and 藤田英明 and 赤木泰文 and 篠原純也},
  title = {Discussions and Comparisons between Comprehensive Harmonic Detection and Specific Harmonic Detection in a Shunt Active Filter for Installation on a Power Distribution System},
  journal = {Transactions of IEEJ},
  year = 2004,
}

@inproceedings{CTT100401097,
  author = {M. Hagiwara and H. Fujita and H. Akagi},
  title = {A 21-level (line-to-line) BTB system based on series connection of sixteen converter-cells for power flow control: experimental verifications by a 200-V, 10-kW laboratory system},
  booktitle = {IEEE IAS Annual Meeting},
  year = 2004,
}

@inproceedings{CTT100885713,
  author = {Makoto Hagiwara and Hideaki Fujita and Hirofumi Akagi},
  title = {16段多重変換器を用いた自励式BTBの実験的検討},
  booktitle = {},
  year = 2004,
}

@inproceedings{CTT100576820,
  author = {中塚 健夫 and Hideaki Fujita and Hirofumi Akagi},
  title = {A Resonant Gate-Drive Circuit without Gate-Charge Losses for a Power MOSFET},
  booktitle = {電気学会 半導体電力変換研究会資料},
  year = 2004,
}