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. 20, 1991
Filed:
Jun. 23, 1987
Applicant:
Inventors:
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
148301 ; 420 83 ;
Abstract
The invention relates to new hard magnetic materials which have an intermetallic compound of tetragonal crystal structure of the ThMn.sub.12 type. The intermetallic compound has the gross formula ZA(Me.sup.I.sub.1-x Me.sup.II.sub.x).sub.12, wherein ZA is a rare earth metal from the group Sm, Er, Tm. Me.sup.I is Fe, Co or a mixture of the two, Me.sup.II is Ti, V, Cr or Si and x=0.1-0.2, preferably 0.12-0.17.