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. 19, 2026
Filed:
Mar. 11, 2021
Applicant:
Proterial, Ltd., Tokyo, JP;
Inventor:
Takashi Tsukada, Tokyo, JP;
Assignee:
PROTERIAL, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 41/02 (2006.01); B22F 3/16 (2006.01); B22F 3/24 (2006.01); H01F 1/057 (2006.01);
U.S. Cl.
CPC ...
H01F 41/02 (2013.01); B22F 3/16 (2013.01); B22F 3/24 (2013.01); H01F 1/0576 (2013.01); H01F 1/0577 (2013.01); B22F 2301/355 (2013.01);
Abstract
The production method for a rare-earth sintered magnet according to the present disclosure comprises: a step for producing a molded article by compression-molding a slurry containing a rare-earth element-containing alloy powder and a dispersion medium using a wet-molding device; and a step for sintering the molded article. When the slurry is being poured into the inside of a space forming a cavity of the wet-molding device, a magnetic field is not applied. By pressing of the slurry, the dispersion medium contained in the slurry starts to be removed from the inside of the space.