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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 11250976 B1

PDFFull Text
Date of Patent:
Feb. 15, 2022

Filed:

Mar. 03, 2015

Rare earth thin film magnet, process for producing same, and target for forming rare earth thin film magnet

Applicant:

Jx Nippon Mining & Metals Corporation, Tokyo, JP;

Inventors:

Masaki Nakano, Nagasaki, JP;

Hirotoshi Fukunaga, Nagasaki, JP;

Takeshi Yanai, Nagasaki, JP;

Masaru Itakura, Nagasaki, JP;

Hironobu Sawatari, Ibaraki, JP;

Assignee:

JX Nippon Mining & Metals Corporation, Tokyo, JP;

Attorney:

Howson & Howson LLP

Primary Examiner:

Paul A Wartalowicz

Assistant Examiner:

Ryan L Heckman

Int. Cl.
CPC ...
H01F 1/00 (2006.01); C23C 14/16 (2006.01); C22C 38/00 (2006.01); H01F 10/12 (2006.01); H01F 41/20 (2006.01); C22C 33/00 (2006.01); C22C 45/02 (2006.01); C23C 14/28 (2006.01); C23C 14/58 (2006.01); H01F 1/053 (2006.01); H01F 41/02 (2006.01);
U.S. Cl.
CPC ...
H01F 1/0045 (2013.01); C22C 33/003 (2013.01); C22C 38/00 (2013.01); C22C 38/002 (2013.01); C22C 38/005 (2013.01); C22C 45/02 (2013.01); C23C 14/16 (2013.01); C23C 14/28 (2013.01); C23C 14/5806 (2013.01); H01F 1/053 (2013.01); H01F 10/126 (2013.01); H01F 41/0253 (2013.01); H01F 41/205 (2013.01);
Abstract

The present invention provides a rare earth thin film magnet having Nd, Fe, and B as essential components, wherein the rare earth thin film magnet has a texture in which an α-Fe phase and a NdFeB phase are alternately arranged three-dimensionally, and each phase has an average crystal grain size of 10 to 30 nm. An object of this invention is to provide a rare earth thin film magnet having superior mass productivity and reproducibility and favorable magnetic properties, as well as to provide the production method thereof and a target for producing the thin film.

Find Patent Forward Citations

Nakano, Masaki. (2022). Rare earth thin film magnet, process for producing same, and target for forming rare earth thin film magnet (U.S. Patent No. 11250976). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11250976

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

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