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:
Oct. 18, 2016
Filed:
Jun. 15, 2012
Mamoru Hosokawa, Kobe, JP;
Wataru Urushihara, Kobe, JP;
Takeshi Ohwaki, Kobe, JP;
Tomotsuna Kamijo, Takasago, JP;
Hirofumi Hojo, Takasago, JP;
Mamoru Hosokawa, Kobe, JP;
Wataru Urushihara, Kobe, JP;
Takeshi Ohwaki, Kobe, JP;
Tomotsuna Kamijo, Takasago, JP;
Hirofumi Hojo, Takasago, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
Disclosed is an iron-based soft magnetic powder for dust core use, which includes an iron-based soft magnetic matrix powder and a phosphate conversion coating on a surface of the matrix powder. The phosphate conversion coating contains nickel element and has an aluminum content of equal to or less than that in the matrix powder. The iron-based soft magnetic powder has such excellent heat resistance as to maintain electrical insulation at satisfactory level even after subjected to a high-temperature heat treatment.