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:
Sep. 15, 2009
Filed:
Oct. 07, 2004
Haruhisa Toyoda, Itami, JP;
Hirokazu Kugai, Itami, JP;
Kazuhiro Hirose, Itami, JP;
Naoto Igarashi, Itami, JP;
Takao Nishioka, Itami, JP;
Haruhisa Toyoda, Itami, JP;
Hirokazu Kugai, Itami, JP;
Kazuhiro Hirose, Itami, JP;
Naoto Igarashi, Itami, JP;
Takao Nishioka, Itami, JP;
Sumitomo Electric Industries, Inc., Osaka, JP;
Abstract
The present invention provides a soft magnetic material and a powder magnetic core having desired magnetic characteristics. A soft magnetic material contains a metal magnetic powder. The metal magnetic powderis formed from crystalswith an average size, as determined from X-ray diffraction, of at least 30 nm. It would be preferable, in the metal magnetic particles, for crystal grainsto have an average size of at least 10 microns.