@article{CTT100409962,
  author = {Yoshihiro Hirao and Kohei Yamamoto and Kentaro Nakamura and Sadayuki Ueha},
  title = {Development of a hand-held sensor probe for detection of sound components radiated from a specific device using surface intensity measurements},
  journal = {Applied Acoustics},
  year = 2004,
}

@inproceedings{CTT100507604,
  author = {Marie Nakazawa and Tsutomu Kosugi and Kentaro Nakamura and Sadayuki Ueha and Akihiro Maezawa and Yoshihiro Hirao},
  title = {A high frequency variable focus ultrasonic transducer using polyurea thin film},
  booktitle = {Proc. of 2005 IEEE Ultrasonics Symposium},
  year = 2005,
}

@inproceedings{CTT100621017,
  author = {Yoshihiro Hirao and Kohei Yamamoto and Kentaro Nakamura and Sadayuki Ueha},
  title = {Detection of sound radiated from a specific device using hand-held sensor probe for surface intensity measurements -precision of measurements in noisy environments},
  booktitle = {Proceedings of the 32nd International Congrss and Exposition on Noise Control Engineering},
  year = 2003,
}

@inproceedings{CTT100468004,
  author = {長塚弘美 and 石井孝明 and 中村健太郎 and 上羽貞行 and 平尾 善裕},
  title = {ポリ尿素圧電高分子薄膜のSi基板上への形成},
  booktitle = {日本音響学会2002年秋季研究発表会講演論文集},
  year = 2002,
}

@inproceedings{CTT100444447,
  author = {高橋大三 and 小杉勉 and 石井孝明 and 中村健太郎 and 上羽貞行 and 平尾 善裕 and 落合 勉},
  title = {ポリ尿素圧電薄膜の超音波トランスデューサへの応用},
  booktitle = {日本学術振興会弾性波素子技術第150委員会第66回委員会資料},
  year = 2000,
}