@article{CTT100585601,
  author = {Takahiro Aoyagi and Marie Nakazawa and Masaya Tabaru and Kentaro Nakamura and Sadayuki Ueha},
  title = {Measurement of surface acoustic wave velocity using a variable-line-focus polyurea thin-film ultrasonic transducer},
  journal = {IEEE Transactions on UltrasonIcs, FerroelectrIcs, and Frequency control},
  year = 2009,
}

@inproceedings{CTT100592774,
  author = {Takahiro Aoyagi and Daisuke Koyama and Kentaro Nakamura and Marie Tabaru},
  title = {Equivalent circuit analysis of efficiency improvement in multilayered polyurea ultrasonic transducers},
  booktitle = {Proceedings of the 30th Symposium on Ultrasonics Electronics},
  year = 2009,
}

@inproceedings{CTT100666039,
  author = {M. Tabaru and T. Azuma and K. Hashiba},
  title = {Measurement of Elastic Properties of Tissues by Shear-Wave Propagation Generated by the Acoustic Radiation Force (I)},
  booktitle = {Proc. 30th Sympo. Ultrason. Electron.},
  year = 2009,
}

@inproceedings{CTT100572131,
  author = {青柳貴洋 and 中澤麻梨江 and 小山大介 and 中村健太郎},
  title = {ポリ尿素可変線集束トランスデューサの高周波特性},
  booktitle = {日本音響学会2009年春季研究発表会講演論文集},
  year = 2009,
}