Title:
圧粉材料及び回転電機
Document Type and Number:
Japanese Patent JP7176021
Kind Code:
B2
Abstract:
Provided is a plurality of flaky magnetic metal particles of embodiments, each flaky magnetic metal particle having a flat surface having either or both of a plurality of concavities and a plurality of convexities, the concavities or convexities being arranged in a first direction and each having a width of 0.1 μm or more, a length of 1 μm or more, and an aspect ratio of 2 or higher; and a magnetic metal phase containing at least one primary element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni). The flaky magnetic metal particles have an average thickness of between 10 nm and 100 μm inclusive, and the average value of the ratio of the average length within the flat surface with respect to the thickness is between 5 and 10,000 inclusive.
Inventors:
Hiroaki Kiuchi
Tomohiro Suetsuna
Takahiro Kawamoto
Yasuyuki Hotta
Tomohiro Suetsuna
Takahiro Kawamoto
Yasuyuki Hotta
Application Number:
JP2021015701A
Publication Date:
November 21, 2022
Filing Date:
February 03, 2021
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H01F1/26; B22F1/054; B22F1/0545; B22F1/068; B22F1/10; B22F1/17; B22F3/00; C22C38/00; C22C45/02; H01F27/255; B22F1/08
Domestic Patent References:
| JP2017135358A | ||||
| JP2017059816A | ||||
| JP2003309016A | ||||
| JP2006052268A | ||||
| JP6224525A | ||||
| JP63090342A | ||||
| JP2008279459A | ||||
| JP55027608A | ||||
| JP2008174814A | ||||
| JP2004111756A | ||||
| JP2002015906A | ||||
| JP2020017741A | ||||
| JP1139702A | ||||
| JP6232587A | ||||
| JP3278407A | ||||
| JP6267723A |
Foreign References:
| WO2017090402A1 | ||||
| US20170076845 | ||||
| US20170209924 | ||||
| US4923533 | ||||
| US5238507 |
Attorney, Agent or Firm:
Torushin Ikegami
Akira Sudo
Masahiro Takashita
Akira Sudo
Masahiro Takashita