@book{CTT100600586,
  author = {Hiroaki Takeda and Enzhu Li and Takashi Nishida and Takuya Hoshina and Takaaki Tsurumi},
  title = {Development of Environmental-Friendly Lead-Free Piezoelectric Materials for Actuator Uses},
  publisher = {Springer London},
  year = 2010,
}

@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{CTT100584409,
  author = {Enzhu Li and Ryo Suzuki and Takuya Hoshina and Hiroaki Takeda and Takaaki Tsurumi},
  title = {Dielectric, piezoelectric, and electromechanical phenomena in (K0.5Na0.5)NbO3–LiNbO3–BiFeO3–SrTiO3 ceramics},
  journal = {Appl. Phys. Lett.},
  year = 2009,
}

@article{CTT100570840,
  author = {Suzuki Ryo and Shingo Uraki and Enzhu LI and Takuya Hoshina and Takaaki Tsurumi},
  title = {Influence of Bi-perovskites on the piezoelectric properties of (K0.5Na0.5)NbO3-based lead free ceramics},
  journal = {Journal of the Ceramic Society of Japan},
  year = 2008,
}

@article{CTT100570841,
  author = {Enzhu Li and Hirofumi Kakemoto and Takuya Hoshina and Takaaki Tsurumi},
  title = {A Shear-Mode Ultrasonic Motor Using Potassium Sodium Niobate-Based Ceramics with High Mechanical Quality Factor},
  journal = {Japanese Journal of Applied Physics},
  year = 2008,
}

@article{CTT100562202,
  author = {Enzhu LI and hirofumi kakemoto and Satoshi Wada and takaaki tsurumi},
  title = {Influence of CuO on the Structure and Piezoelectric Properties of the Alkaline Niobate-based Lead-free Ceramics},
  journal = {J. Am. Ceram. Soc.},
  year = 2007,
}

@article{CTT100562307,
  author = {Enzhu LI and hirofumi kakemoto and Satoshi Wada and takaaki tsurumi},
  title = {Effect of Small Amount CuO Doping on Microstructure and Properties of the Alkaline Niobate-Based Lead-Free Ceramics},
  journal = {Ferroelectrics},
  year = 2007,
}

@article{CTT100562203,
  author = {Enzhu LI and hirofumi kakemoto and Satoshi Wada and takaaki tsurumi},
  title = {Effects of Manganese Addition on Piezoelectric Properties of the (K, Na, Li)(Nb, Ta, Sb)O3 Lead-Free Ceramics},
  journal = {J. Ceram. Soc. Jpn.},
  year = 2007,
}

@inproceedings{CTT100608990,
  author = {武田博明 and 萩原学 and 高橋星太 and 李恩竹 and 保科拓也 and 鶴見敬章},
  title = {ニオブ酸アルカリ系非鉛圧電セラミックスのシェアモードを用いた超音波モーターの駆動特性},
  booktitle = {},
  year = 2009,
}

@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,
}

@inproceedings{CTT100582817,
  author = {Takaaki Tsurumi and Enzhu Li and Ryo Suzuki and Singo Uraki and Takuya Hoshina},
  title = {Shear Mode Ultrasonic Motor and Ink-jet Head Using Lead-Free Alkaline Niobate Ceramics},
  booktitle = {},
  year = 2008,
}

@inproceedings{CTT100582816,
  author = {Takaaki Tsurumi and Enzhu Li and Ryo Suzuki and Takuya Hoshina},
  title = {Ultrasonic Motors and Ink-jet Heads Using Shear Mode of Lead-free Piezoelectric Ceramics},
  booktitle = {},
  year = 2008,
}

@misc{CTT100620468,
  author = {鶴見敬章 and 武田博明 and 李恩竹 and 保科拓也},
  title = {シェアモードを用いた非鉛圧電材料の応用},
  year = 2009,
}