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:
Oct. 20, 2009
Filed:
Jul. 11, 2007
Applicants:
Tsutomu Harada, Settsu, JP;
Takashi Tajiri, Osaka, JP;
Shuichi Okuyama, Hyogo, JP;
Inventors:
Assignee:
Hitachi Metals, Ltd., Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 43/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A press machineincludes a diewith a through holethat defines a cavity, a first press surfaceand a second press surfacefor pressing a magnetic powderloaded in the cavity, and magnetic field generating means for applying an aligning magnetic field to the magnetic powderin the cavity. At least one of the first and second press surfacesandhas a region made of a material having a Vickers hardness that is higher than 200 but equal to or lower than 450. In pressing the powder under the aligning magnetic field, the press machineminimizes the disturbance in the orientation of the powder.