Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kan Akatsu0
Minoru Arimitsu0
Date of Patent
July 29, 2008
Patent Application Number
11224109
Date Filed
September 13, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
A rotor for a rotary electric machine includes a rotor core made of magnetic material, and being in the form of a disk, and a plurality of magnet sets each including a pair of permanent magnets whose polarities are identical to each other. The magnet sets are arranged circumferentially in the rotor core so that the polarities of the magnet sets change alternately. The rotor core includes nonmagnetic portions each formed between adjacent two of the magnet sets.
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