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:
Nov. 26, 1996
Filed:
May. 17, 1995
Bridgestone Corporation, Tokyo, JP;
Abstract
A magnetic powder for bonded magnets is obtained by subjecting starting magnetic particles to agitation in a high speed air stream whereby individual particles are mechanically impacted with one another by the action of the stream. A magnetic composition comprising the magnetic powder and a resin binder is also described wherein the magnetic powder can be highly packed in the resin binder to ensure good fluidity of the composition. The magnetic composition can be prepared by mixing magnetic particles and a resin binder powder, subjecting the mixture to agitation in a high speed air stream for impactness of the particles and heading the mixture or by subjecting magnetic particles to agitation in a high speed air stream, mixing the agitated particles with a powder of a resin binder and heading the resultant mixture.