Title:
磁石の製造方法
Document Type and Number:
Japanese Patent JP7274266
Kind Code:
B2
Abstract:
A method for manufacturing a magnet includes (1) a step of preparing three or more unmagnetized magnet materials of which magnetization easy axes are oriented in predetermined directions, and adhering the unmagnetized magnet materials with each other to make an assembly, and (2) a step of applying a curved pulse magnetic field to the assembly to magnetize the assembly, wherein in the step (2), the unmagnetized magnet materials are magnetized into magnet blocks, and an angle θ (where 0≤θ≤180 degrees holds) formed by magnetization directions of at least a pair of magnet blocks adjacent to each other is in a range of 30 degrees to 120 degrees.
Inventors:
Kenichi Fujikawa
Tadashi Saito
Katsuya Kume
Takashi Yamamoto
Tadashi Saito
Katsuya Kume
Takashi Yamamoto
Application Number:
JP2018100231A
Publication Date:
May 16, 2023
Filing Date:
May 25, 2018
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
H01F13/00; H01F7/02
Domestic Patent References:
| JP2004072820A | ||||
| JP10289800A | ||||
| JP6302417A | ||||
| JP2290003A |
Foreign References:
| US20120091832 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito