@article{CTT100590601,
  author = {Enzhu Li and Ryo Sasaki and Takuya Hoshina and Hiroaki Takeda and Takaaki Tsurumi},
  title = {Miniature Ultrasonic Motor Using Shear Mode of Potassium Sodium Niobate-Based Lead-Free Piezoelectric Ceramics},
  journal = {Japanese Journal of Applied Physics},
  year = 2009,
}

@article{CTT100582727,
  author = {Ryo Sasaki and Ryo Suzuki and Shingo Uraki and Hirofumi Kakemoto and Takaaki Tsurumi},
  title = {Low-temperature sintering of alkaline niobate based piezoelectric ceramics using sintering aids},
  journal = {J. Ceram. Soc. Jpn.},
  year = 2008,
}

@inproceedings{CTT100608977,
  author = {Hiroaki Takeda and Manabu Hagiwara and Enzhu Li and Ryo Sasaki and Satoshi Suzuki and Takuya Hoshina and Takaaki Tsurumi},
  title = {Characterization of Share Mode Resonators Using Potassium Sodium Niobate-based Ceramics and Their Application to Ultrasonic Motors},
  booktitle = {},
  year = 2009,
}

@inproceedings{CTT100582849,
  author = {武田 博明 and 佐々木 僚 and 李 恩竹 and 保科 拓也 and 鶴見 敬章},
  title = {(K,Na)NbO3系非鉛圧電セラミックスのシェアモードを利用した超音波モーターの作製と評価},
  booktitle = {},
  year = 2009,
}

@inproceedings{CTT100582840,
  author = {佐々木僚 and 李恩竹 and 保科拓也 and 武田博明 and 鶴見敬章},
  title = {非鉛圧電セラミックスを利用した超音波モータの駆動特性},
  booktitle = {},
  year = 2009,
}