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. 18, 1981
Filed:
Jun. 20, 1977
Applicant:
Inventors:
Assignee:
Hitachi Metals, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; H01F / ;
U.S. Cl.
CPC ...
148 3157 ;
Abstract
A permanent magnet alloy made by adding one or more of Si, Ti, Zr, V, Nb, Cr, and Mo to a known permanent magnet alloy containing rare earth metals, Co, Fe, and Cu. By adding such additives, the amount of substitution of copper required for full precipitation hardening is reduced in the alloy of the present invention for the improvement in magnetic characteristics and thermal stability.