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:
Apr. 23, 2019
Filed:
Feb. 12, 2014
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Izumi Ozeki, Ibaraki, JP;
Katsuya Kume, Ibaraki, JP;
Toshiaki Okuno, Ibaraki, JP;
Takashi Ozaki, Ibaraki, JP;
Tomohiro Omure, Ibaraki, JP;
Keisuke Taihaku, Ibaraki, JP;
Takashi Yamamoto, Ibaraki, JP;
NITTO DENKO CORPORATION, Ibaraki-shi, Osaka, JP;
Abstract
Provided are a rare-earth permanent magnet whose magnet density after sintering is very high and a method for manufacturing a rare-earth permanent magnet. Thus, a magnet raw material is milled into magnet powder, and then, a compoundis formed by mixing the magnet powder thus milled with a binder. Next, the compoundthus formed is subjected to a hot-melt molding onto a supporting substrateso as to form a green sheetmolded to a sheet-like shape. Thereafter, while the green sheetthus molded is softened by heating, magnetic field orientation is carried out by applying a magnetic field to the green sheetthus heated; and further, the green sheethaving been subjected to the magnetic field orientation is calcined by a vacuum sintering, which is further followed by a pressure sintering to produce a permanent magnet