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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.:

US 10256019 B1

PDFFull Text
Expired
Date of Patent:
Apr. 09, 2019

Filed:

Aug. 05, 2015

Iron-based soft magnetic powder for dust core, method for manufacturing the same, and dust core

Applicant:

Kobe Steel, Ltd., Kobe-shi, JP;

Inventors:

Takeshi Ohwaki, Kobe, JP;

Hiroyuki Mitani, Kobe, JP;

Hirofumi Hojo, Takasago, JP;

Kasumi Yanagisawa, Kobe, JP;

Nobuaki Akagi, Takasago, JP;

Assignee:

KOBE STEEL, LTD., Kobe-shi, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Mandy C Louie

Int. Cl.
CPC ...
H01F 1/20 (2006.01); C23C 22/07 (2006.01); C23C 22/82 (2006.01); H01F 1/147 (2006.01); H01F 41/00 (2006.01); B22F 1/02 (2006.01); H01F 1/24 (2006.01); H01F 41/02 (2006.01); H01F 1/26 (2006.01);
U.S. Cl.
CPC ...
H01F 1/20 (2013.01); B22F 1/02 (2013.01); C23C 22/07 (2013.01); C23C 22/82 (2013.01); H01F 1/147 (2013.01); H01F 1/24 (2013.01); H01F 41/005 (2013.01); H01F 41/0246 (2013.01); B22F 2998/00 (2013.01); C22C 2202/02 (2013.01); H01F 1/26 (2013.01); Y10T 428/12181 (2015.01);
Abstract

An iron-based soft magnetic powder for dust core having a high magnetic flux density, maintaining high electric insulation even after annealing, and more excellent in the mechanical strength in which a coating film having a phosphate conversion coating film is formed on the surface thereof and the peak height for the absorption of hydroxyl groups formed at 3700 cmto 2500 cmis 0.04 or more being indicated by absorbance when the coating film is analyzed by infrared diffuse reflectance spectroscopy.

Find Patent Forward Citations

Ohwaki, Takeshi. (2019). Iron-based soft magnetic powder for dust core, method for manufacturing the same, and dust core (U.S. Patent No. 10256019). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10256019

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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