Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2007-08-28
2007-08-28
Tugbang, A. Dexter (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S598000, C029S609000, C310S216055, C310S216055, C310S256000, C310S260000
Reexamination Certificate
active
11354860
ABSTRACT:
A method of manufacturing a stator core for a dynamo-electric machine by preparing a cylindrical laminated body by winding into a helical shape a continuous first sheet formed by press-punching from a strip-shaped first magnetic steel sheet material, preparing a plurality of second sheets by press-punching from a thicker second magnetic steel sheet material, bending the second sheets into an annular shape and stacking the second sheets bent into the annular shape on both axial ends of the laminated body and integrating the stacked sheets by laser welding.
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Harada Yoshihiro
Hatano Susumu
Kuroki Kensaku
Oohashi Atsushi
Mitsubishi Denki & Kabushiki Kaisha
Tugbang A. Dexter
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