@article{CTT100879966,
  author = {Yasunori Sakai and Ryo Kinouchi and Yuta Toki and Tomohisa Tanaka},
  title = {Novel non-traditional mechanical drilling process with squeeze motion},
  journal = {Materials Letters},
  year = 2021,
}

@misc{CTT100794700,
  author = {田中智久 and 酒井康徳},
  title = {制振ダンパ},
  howpublished = {登録特許},
  year = 2021,
  month  = {},
  note   = {特願2017-115916(2017/06/13), 特開2019-002441(2019/01/10), 特許第6908921号(2021/07/06)}
}