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. 15, 2018
Filed:
Aug. 31, 2012
Applicant:
Yuichiro Shindo, Ibaraki, JP;
Inventor:
Yuichiro Shindo, Ibaraki, JP;
Assignee:
JX Nippon Mining & Metals Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 1/053 (2006.01); H01F 41/02 (2006.01); H01F 1/057 (2006.01);
U.S. Cl.
CPC ...
H01F 1/0536 (2013.01); H01F 1/0577 (2013.01); H01F 41/0266 (2013.01);
Abstract
Provided is a neodymium-based rare earth permanent magnet having a purity of 99.9 wt % or higher excluding gas components and component elements. The present invention can remarkably improve the magnetic properties in a neodymium-based rare earth permanent magnet by highly purifying the magnetic materials. Furthermore, the present invention aims to provide a high-performance neodymium-based rare earth permanent magnet with improved heat resistance and corrosion resistance, which are inherent drawbacks of magnetic materials.