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:
Oct. 24, 2023
Filed:
Mar. 27, 2019
Ryuji Hashimoto, Tokyo, JP;
Yasushi Enokido, Tokyo, JP;
Shusuke Okada, Aichi, JP;
Kenta Takagi, Aichi, JP;
Ryuji Hashimoto, Tokyo, JP;
Yasushi Enokido, Tokyo, JP;
Shusuke Okada, Aichi, JP;
Kenta Takagi, Aichi, JP;
TDK Corporation, Tokyo, JP;
Abstract
One embodiment of the present invention includes, in a samarium-iron-nitrogen based magnet powder, a main phase containing samarium and iron, and a sub-phase containing samarium, iron, and at least one or more elements selected from the group consisting of zirconium, molybdenum, vanadium, tungsten, and titanium, wherein an atomic ratio of a rare earth element to an iron group element is greater than an atomic ratio of the rare earth element to the iron group element of the main phase, wherein at least a part of a surface of the main phase is coated with the sub-phase.