- 专利标题: Permanent magnet, rotary electrical machine, and vehicle
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申请号: US17375064申请日: 2021-07-14
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公开(公告)号: US11676747B2公开(公告)日: 2023-06-13
- 发明人: Masaya Hagiwara , Yosuke Horiuchi , Shinya Sakurada
- 申请人: KABUSHIKI KAISHA TOSHIBA
- 申请人地址: JP Tokyo
- 专利权人: KABUSHIKI KAISHA TOSHIBA
- 当前专利权人: KABUSHIKI KAISHA TOSHIBA
- 当前专利权人地址: JP Tokyo
- 代理机构: Amin, Turocy & Watson, LLP
- 主分类号: H01F1/055
- IPC分类号: H01F1/055 ; B22F3/24 ; C22C38/16 ; C22C38/14 ; C22C38/10 ; H01F41/02 ; C22C38/00 ; C22C19/07
摘要:
A permanent magnet is expressed by a composition formula: RpFeqMrCusCo100-p-q-r-s. The magnet includes a crystal grain having a main phase including a TbCu7 crystal phase, and a volume ratio of the TbCu7 crystal phase to the main phase is 95% or more.
公开/授权文献
- US20210343457A1 PERMANENT MAGNET, ROTARY ELECTRICAL MACHINE, AND VEHICLE 公开/授权日:2021-11-04
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