Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2009-08-13
2011-12-06
Banks, Derris (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S596000, C029S607000, C029S609000, C310S156380, C310S156430, C310S0400MM
Reexamination Certificate
active
08069552
ABSTRACT:
A method of manufacturing a rotor magnet for a micro rotary electric machine is provided which includes steps of: a process in which a plurality of thick films, each of which is made of nanocomposite texture composed of αFe and R-TM-B where R is either 10 to 20 atomic % Nd or 10 to 20 atomic % Pr, B is 5 to 20 atomic % and TM is either Fe or partly Co-substituted Fe with 0 to 16 atomic %, are formed into a laminated magnet including isotropic nano-crystalline texture which contains αFe and R2TM14B and which has a remanence, Mr, of 0.95 T or more; and a process where the laminated magnet is multi-polar magnetized in-plane of the thick films.
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Banks Derris
Minebea Co. Ltd.
Oliff & Berridg,e PLC
Parvez Azm
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