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:
Mar. 30, 2021
Filed:
Nov. 19, 2018
Applicant:
Tdk Corporation, Tokyo, JP;
Inventor:
Nobuo Takagi, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01K 1/02 (2006.01); H01F 1/057 (2006.01); H02K 1/02 (2006.01); H01F 41/02 (2006.01); H02K 1/27 (2006.01);
U.S. Cl.
CPC ...
H01F 1/0577 (2013.01); H01F 41/026 (2013.01); H01F 41/0293 (2013.01); H02K 1/02 (2013.01); H02K 1/276 (2013.01);
Abstract
The present invention aims to provide a novel magnet, whose surface's insulating property can be increased, and a motor using the same. The present invention provides a magnet comprising a magnet element containing a rare earth element R, a transition metal element T and boron B, and a phosphate layer including manganese-containing phosphate, wherein the phosphate layer is provided on the surface of the magnet element, and the thickness of the phosphate layer is 0.5 μm or more.