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:
Sep. 04, 1990
Filed:
Apr. 04, 1988
Applicant:
Inventor:
Mohammad H Ghandehari, Brea, CA (US);
Assignee:
Union Oil Company of California, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
148302 ; 420 83 ; 420121 ; 148103 ; 148104 ;
Abstract
Permanent magnets are prepared by a method comprising mixing a particular rare earth-iron-boron alloy with particulate aluminum, aligning the magnetic domains of the mixture, compacting the aligned mixture to form a shape, and sintering the compacted shape.