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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.:

US 11072842 B1

PDFFull Text
Date of Patent:
Jul. 27, 2021

Filed:

Mar. 29, 2017

Rare earth thin film magnet and method for producing same

Applicant:

Jx Nippon Mining & Metals Corporation, Tokyo, JP;

Inventors:

Masaki Nakano, Nagasaki, JP;

Hirotoshi Fukunaga, Nagasaki, JP;

Takeshi Yanai, Nagasaki, JP;

Hironobu Sawatari, Ibaraki, JP;

Assignee:

JX NIPPON MINING & METALS CORPORATION, Tokyo, JP;

Attorney:

Howson & Howson LLP

Primary Examiner:

Jie Yang

Int. Cl.
CPC ...
C23C 14/06 (2006.01); C22C 38/00 (2006.01); C23C 14/28 (2006.01); C23C 14/58 (2006.01); H01F 1/057 (2006.01); H01F 10/14 (2006.01); H01F 41/02 (2006.01); H01F 41/20 (2006.01); H01F 10/12 (2006.01);
U.S. Cl.
CPC ...
C22C 38/005 (2013.01); C22C 38/00 (2013.01); C23C 14/06 (2013.01); C23C 14/28 (2013.01); C23C 14/58 (2013.01); C23C 14/5806 (2013.01); H01F 1/057 (2013.01); H01F 10/126 (2013.01); H01F 10/14 (2013.01); H01F 41/02 (2013.01); H01F 41/20 (2013.01); H01F 41/205 (2013.01);
Abstract

Provided is a rare earth thin film magnet having Nd, Fe and B as essential components, which is characterized in that a Nd—Fe—B base film is formed on a Si substrate having an oxide film formed on a surface thereof and has a composition in which the Nd content is higher than that of a stoichiometric composition and that a film (nano composite film) is formed on the base film and has a texture in which an α-Fe phase and NdFeB are alternately arranged and three-dimensionally dispersed. The rare earth thin film magnet provided is less susceptible to the occurrence of film separation and substrate breakage and exhibits favorable magnetic properties.

Find Patent Forward Citations

Nakano, Masaki. (2021). Rare earth thin film magnet and method for producing same (U.S. Patent No. 11072842). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11072842

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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