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:
Mar. 06, 2012
Filed:
Nov. 19, 2007
Applicants:
Hiroshi Nagata, Ibaraki, JP;
Yoshinori Shingaki, Ibaraki, JP;
Inventors:
Hiroshi Nagata, Ibaraki, JP;
Yoshinori Shingaki, Ibaraki, JP;
Assignee:
Ulvac, Inc., Kanagawa, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 1/03 (2006.01); C21D 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a method of manufacturing a permanent magnet having extremely high orientation by arranging such that the crystal fractures of alloy raw meal powder having more equal crystal orientational relationship are combined in magnetic field. In this invention, alloy raw meal powder is filled into a cavity and, while agitating the alloy raw meal powder inside the cavity, is oriented in the magnetic field. This oriented body is then compression molded in the magnetic field into a predetermined shape.