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. 23, 2013
Filed:
Apr. 20, 2012
Masahiro Hachiya, Takasaki, JP;
Takuya Ishida, Takasaki, JP;
Takayuki Arai, Takasaki, JP;
Kenji Otake, Takasaki, JP;
Hitoshi Matsuura, Takasaki, JP;
Masahiro Hachiya, Takasaki, JP;
Takuya Ishida, Takasaki, JP;
Takayuki Arai, Takasaki, JP;
Kenji Otake, Takasaki, JP;
Hitoshi Matsuura, Takasaki, JP;
Taiyo Yuden Co., Ltd., Tokyo, JP;
Abstract
A laminated inductor includes a laminate constituted by multiple magnetic material layers, and coil conductors formed in a spiral pattern in the laminate. The magnetic material layers are layers of a magnetic material having multiple metal grains constituted by a Fe—Si-M soft magnetic alloy and oxide film formed on the surface of the metal grains. The magnetic material has bonding portions where adjacent metal grains are bonded via the oxide film formed on the respective surfaces of the adjacent metal grains as well as bonding portions of metal grains bonding to each other in areas where no oxide film is present, and at least some of the voids generated by agglomeration of the metal grains are filled with a resin material.