Metal treatment – Stock – Magnetic
Reexamination Certificate
2005-10-18
2005-10-18
Sheehan, John P. (Department: 1742)
Metal treatment
Stock
Magnetic
C148S122000, C420S083000, C420S121000, C252S062540
Reexamination Certificate
active
06955729
ABSTRACT:
An alloy for bonded magnets of the present invention includes at least a main component of iron (Fe), 12-16 atomic % (at %) of rare-earth elements (R) including yttrium (Y), and 10.8-15 at % of boron (B), and is subjected to a hydrogen treatment method as HDDR process or d-HDDR process.Using the magnet powder obtained from carrying out d-HDDR processing, etc. on this magnet alloy, pellets with superior insertion characteristics into bonded magnet molding dies can be obtained, and bonded magnets with superior magnetic properties and showing low cost can be obtained.
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Hamada Norihiko
Honkura Yoshinobu
Mishima Chisato
Aichi Steel Corporation
Sheehan John P.
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