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:
Feb. 27, 2018
Filed:
Oct. 17, 2013
Daisuke Ichigozaki, Nisshin, JP;
Noritaka Miyamoto, Toyota, JP;
Tetsuya Shoji, Toyota, JP;
Yuya Ikeda, Toyota, JP;
Akira Manabe, Miyoshi, JP;
Daisuke Ichigozaki, Nisshin, JP;
Noritaka Miyamoto, Toyota, JP;
Tetsuya Shoji, Toyota, JP;
Yuya Ikeda, Toyota, JP;
Akira Manabe, Miyoshi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi, JP;
Abstract
A method for manufacturing a rare-earth magnet, through hot deformation processing, having a high degree of orientation at the entire area thereof and high remanence, without increasing processing cost including a step of press-forming powder as a rare-earth magnetic material to form a compact S; and a step of performing hot deformation processing to the compact S, thus manufacturing the rare-earth magnet C. The hot deformation processing includes two steps of extruding and upsetting. The extruding is to place a compact S in a die Da, and apply pressure to the compact S' in a heated state with an extrusion punch PD so as to reduce the thickness for extrusion to prepare the rare-earth magnet intermediary body S″ having a sheet form, and the upsetting is to apply pressure to the rare-earth magnet intermediary body S″ in the thickness direction to reduce the thickness, thus manufacturing the rare-earth magnet C.