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:
Aug. 19, 2014
Filed:
Dec. 20, 2010
Yasuo Oshima, Tokyo, JP;
Susumu Handa, Tokyo, JP;
Kota Akaiwa, Tokyo, JP;
Taichi Tamura, Tokyo, JP;
Tamura Corporation, Tokyo, JP;
Abstract
In a first mixing process, soft magnetic powders and inorganic insulative powders of 0.4-1.5 wt % relative to the soft magnetic powders are mixed. In the heating process, a mixture through the first mixing process is heated at a temperature of 1000° C. or more and below the sintering temperature of the soft magnetic powders under a non-oxidizing atmosphere. In the granulating process, a silane coupling agent of 0.1-0.5 wt % is added to form an adhesiveness enhancing layer. A silicon resin of 0.5-2.0 wt % is added to the soft magnetic alloy powders having the adhesiveness enhancing layer formed by the silane coupling agent to form a binding layer. A lubricating resin is mixed, and a mixture is pressed and molded to form a mold. In an annealing process, the mold is annealed under a non-oxidizing atmosphere to form a dust core which is used to form a reactor.