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. 09, 2010
Filed:
Mar. 29, 2005
Toru Maeda, Itami, JP;
Naoto Igarashi, Itami, JP;
Kazuhiro Hirose, Itami, JP;
Haruhisa Toyoda, Itami, JP;
Toru Maeda, Itami, JP;
Naoto Igarashi, Itami, JP;
Kazuhiro Hirose, Itami, JP;
Haruhisa Toyoda, Itami, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A method of producing a soft magnetic material includes the steps of preparing soft magnetic powder containing a plurality of soft magnetic particles etching the soft magnetic powder to remove surfaces of the soft magnetic particles and, after the etching step, heat-treating the soft magnetic powder in a finely divided state at a temperature of not less than 400° C. and not more than 900° C. By this method configured as above, desired magnetic characteristics can be obtained.