@misc{CTT100865160,
  author = {Takahisa Yamazaki and Amane Muraoka},
  title = {磁性砥粒構造及びその製造方法},
  howpublished = {RegisteredPatent},
  year = 2024,
  month  = {},
  note   = {特願2020-040885(2020/03/10), 特開2021-143225(2021/09/24), 特許第7454838号(2024/03/14)}
}