The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2022
Filed:
Jun. 25, 2018
Daido Steel Co., Ltd., Nagoya, JP;
Jumpei Hinata, Nagoya, JP;
Hayato Hashino, Nagoya, JP;
Fumiya Kitanishi, Nagoya, JP;
Kazuya Gomi, Nagoya, JP;
Kazumasa Fujimura, Nagoya, JP;
DAIDO STEEL CO., LTD., Nagoya, JP;
Abstract
The present invention relates to an RFeB-based magnet in which a treatment (grain boundary diffusion treatment) for diffusing atoms of the heavy rare earth element Ris performed in a base material including an RFeB-based sintered magnet obtained by subjecting crystal grains in a raw-material powder including a powder of an RFeB-based alloy containing the light rare earth element R, Fe and B to orientation in a magnetic field and then sintering the oriented raw-material powder, or an RFeB-based hot-deformed magnet obtained by subjecting the same raw-material powder to hot pressing and then to hot deforming to thereby orient the crystal grains in the raw-material powder, and a method for producing the RFeB-based magnet.