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. 10, 2012
Filed:
Nov. 22, 2006
Toru Maeda, Itami, JP;
Naoto Igarashi, Itami, JP;
Haruhisa Toyoda, Itami, JP;
Seiji Ishitani, Otake, JP;
Hiroko Morii, Otake, JP;
Kazuyuki Hayashi, Otake, JP;
Toru Maeda, Itami, JP;
Naoto Igarashi, Itami, JP;
Haruhisa Toyoda, Itami, JP;
Seiji Ishitani, Otake, JP;
Hiroko Morii, Otake, JP;
Kazuyuki Hayashi, Otake, JP;
Sumitomo Electric Industries, Ltd., Osaka-Shi, JP;
Toda Kogyo Corp., Hiroshima, JP;
Abstract
The soft magnetic material includes a plurality of composite magnetic particles having a metal magnetic particle and an insulating film surrounding the surface of the metal magnetic particle. The metal magnetic particle contains iron as the main component. The insulating film contains aluminum, silicon, phosphorus, and oxygen. The insulating film satisfies the relationship 0.4≦M/(M+M)≦0.9 and the relationship of 0.25≦(M+M)/M≦1.0 in the case that molar amount of aluminum contained in the insulating film is represented by M, the sum of the molar amount of aluminum contained in the insulating film and the molar amount of silicon contained in the insulating film is represented by (M+M), and the molar amount of phosphorus contained in the insulating film is represented by M.