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. 01, 2016
Filed:
Nov. 29, 2011
Hirofumi Hojo, Takasago, JP;
Masamichi Chiba, Kobe, JP;
Hiroyuki Mitani, Kobe, JP;
Nobuaki Akagi, Takasago, JP;
Tomotsuna Kamijo, Takasago, JP;
Hirofumi Hojo, Takasago, JP;
Masamichi Chiba, Kobe, JP;
Hiroyuki Mitani, Kobe, JP;
Nobuaki Akagi, Takasago, JP;
Tomotsuna Kamijo, Takasago, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
Provided is an iron-based soft magnetic powder for dust core having a less coercive force, which is obtained by specifying the amount of inclusions in the iron-based powder for dust core, and at the same time, capable of decreasing the coercive force of a dust core produced using the iron-based soft magnetic powder. The iron-based soft magnetic powder for dust core is characterized by that when the cross-section of the iron-based soft magnetic powder particle is observed with a scanning electron microscope, the number of inclusions having an equivalent circle diameter from 0.1 to 3 μm is 1×10pieces/mmor less and the number of inclusions having an equivalent circle diameter exceeding 3 μm is 10 pieces/mmor less.