Stepping motor and rotor

Details Stepping motor and rotor Stepping motor and rotor

2008-03-14

2010-10-05

Nguyen, Tran N (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156150, C310S156480, C310S156490

Reexamination Certificate

active

07808141

ABSTRACT:
A stepping motor has a stator and a rotor disposed to surround the stator. The rotor has an annular magnet which has a plurality of magnetic poles formed along a circumference thereof, and a comb-teeth-shaped back yoke which is disposed to surround the magnet and has a plurality of comb teeth, the comb teeth facing boundary positions of adjacent magnetic poles.

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Japanese Office Action mailed Jan. 6, 2009 for Japanese Application No. 2007-093772 with translation.

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