Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yuji Ito0
Takashi Fujimura0
Date of Patent
March 15, 2011
Patent Application Number
12045865
Date Filed
March 11, 2008
Patent Primary Examiner
Patent abstract
A feed motor lock detection device detects a back-electromotive voltage in a feed motor M and checks whether the feed motor M is in a driven state or in a non-driven state based on the level of the back-electromotive voltage.
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