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:
Apr. 09, 2013
Filed:
Nov. 11, 2008
Eisuke Hoshina, Toyota, JP;
Toshiya Yamaguchi, Miyoshi, JP;
Yusuke Oishi, Nagoya, JP;
Tomoyasu Kitano, Nisshin, JP;
Kazuhiro Kawashima, Kasugai, JP;
Junghwan Hwang, Nisshin, JP;
Eisuke Hoshina, Toyota, JP;
Toshiya Yamaguchi, Miyoshi, JP;
Yusuke Oishi, Nagoya, JP;
Tomoyasu Kitano, Nisshin, JP;
Kazuhiro Kawashima, Kasugai, JP;
Junghwan Hwang, Nisshin, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Fine Sinter Co., Ltd., Kasugai-shi, JP;
Abstract
A method for manufacturing a powder for a magnetic core including at least a process of performing a siliconizing treatment on a surface of an iron powder containing elemental carbon. In the process of siliconizing treatment, a powder containing at least a silicon dioxide is brought into contact with the surface of the iron powder, elemental silicon is detached from the silicon dioxide by heating the powder of silicon dioxide, and the siliconizing treatment is performed by causing the detached elemental silicon to permeate and diffuse into a surface layer of the iron powder. The invention provides a method for manufacturing a powder for a magnetic core, by which loss reduction is achieved.