Tesla's 'rotor geometry' patent hints at more efficient electric motors
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Permanent magnet motor Patent Grant Takizawa , et al. [Mitsubishi Electric Corporation]
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Howard Johnson's permanent Magnet Motor – ** Fuel Efficient Vehicles **
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![Rotor Structure, Permanent Magnet Auxiliary Synchronous Reluctance Motor And Electric Vehicle DONG; Mingzhu ; et al. [GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI]](https://uspto.report/patent/app/20210006110/US20210006110A1-20210107-D00000.png "Rotor Structure, Permanent Magnet Auxiliary Synchronous Reluctance Motor And Electric Vehicle DONG; Mingzhu ; et al. [GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI]")