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:
Jan. 13, 2015
Filed:
May. 09, 2011
Dong Chul Pyun, Tucson, AZ (US);
Heemin Yoo, Tucson, AZ (US);
Hirohisa Omoto, Tokyo, JP;
Takayuki Yoshida, Tokyo, JP;
Dong Chul Pyun, Tucson, AZ (US);
Heemin Yoo, Tucson, AZ (US);
Hirohisa Omoto, Tokyo, JP;
Takayuki Yoshida, Tokyo, JP;
The Arizona Board of Regents on Behalf of The University of Arizona, Tuscon, AZ (US);
Materials Co., Ltd., Tokyo, JP;
Abstract
A metallic magnetic powder where a primary particle of each metallic magnetic particle is a powder without forming an aggregate, and a method of making the same that includes manufacturing a metallic magnetic powder constituted of metallic magnetic particles, containing a metallic magnetic phase, with Fe, or Fe and Co as main components, rare earth elements, or yttrium and one or more non-magnetic components removing the non-magnetic component from the metallic magnetic with a reducing agent, while making a complexing agent exist for forming a complex with the non-magnetic component in water; oxidizing the metallic magnetic particle with the non-magnetic component removed; substituting water adhered to the oxidized metallic magnetic particle with an organic solvent; and coating the surface of the metallic magnetic particle with an organic matter different from the organic solvent, while maintaining a wet condition of the metallic magnetic particle with the organic solvent adhered thereto.