Metal working – Method of mechanical manufacture – Wheel making
Reexamination Certificate
2007-04-03
2007-04-03
Trinh, Minh (Department: 3729)
Metal working
Method of mechanical manufacture
Wheel making
C029S894360, C029S596000, C029S598000, C310S239000
Reexamination Certificate
active
10831176
ABSTRACT:
A magnet (10) that is an annular member is fixed or secured on an outer circumference surface or an inner circumference surface of a yoke (4) that is a cylindrical member. An lower end surface in the axial direction of the magnet is fixed or secured to the same plane as a lower end surface in the axial direction of the yoke (4), or the lower end surface in the axial direction of the magnet is fixed or secured so as to protrude a little from the lower end surface in the axial direction of the yoke. An annular groove (4a) that is recessed outward in the radial direction or inward in the radial direction is formed on a part of the outer circumference surface or the inner circumference surface that is continuous to the yoke (4).
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Fujii Yoshio
Otagaki Akira
Yamada Yosuke
Nidec Corporation
Trinh Minh
Westerman Hattori Daniels & Adrian LLP
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