发明名称 MOTOR AND DRIVING DEVICE
摘要 A magnetic-pole portion can be formed by thread cutting, whereby a motor can be provided at lower cost as compared to a case where the magnetic-pole portion is formed by press-working.
申请公布号 US2009108701(A1) 申请公布日期 2009.04.30
申请号 US20080258241 申请日期 2008.10.24
申请人 CANON KABUSHIKI KAISHA 发明人 KIYAMURA KOUSUKE
分类号 H02K1/12;H02K15/02 主分类号 H02K1/12
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