Method for preparing rare earth-iron-boron permanent magnets

United States of America Patent

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Nov 7, 1989
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app pub date
Apr 4, 1988
filing date
May 30, 1986

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Expired

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Abstract

Permanent magnets are prepared by a method comprising mixing a particulate rare earth-iron-boron alloy with particulate aluminum, aligning the magnetic domains of the mixture, compacting the align mixture to form a shape, and sintering the compacted shape.

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Patent Owner	Address
RARE EARTH ACQUISITIONS LLC	1400 16TH STREET SUITE 200 DENVER CO 80202

International Classification(s)

H01F:MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF M....

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ghandehari, Mohammad H	Brea, CA	21	125
# of filed Patents : 21 Total Citations : 125

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Method for preparing rare earth-iron-boron permanent magnets

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07177056

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Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
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PATENT NO	4878958
SERIAL NO	07177056
DOCKET NO

Date	Code	Event	Description
Sep 01, 2015	I	Issuance
Dec 30, 2013	F	Filing

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07177056

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