@article{oai:kanazawa-u.repo.nii.ac.jp:00009483,
 author = {Yamada, Sotoshi and Takeuchi, A. and Bessho, Kazuo},
 issue = {5},
 journal = {IEEE Transactions on Maggetics},
 month = {Sep},
 note = {This paper described the structure and characteristics of a new high-speed induction motor. The motor has the magnetic combination of an induction motor and a magnetic frequency tripler and is called a “hybrid motor”. When the three-phase to two-phase type tripler we proposed is adopted, this rotating-field type hybrid motor can be constructed. The motor has remarkable starting torque and operates near synchronous speed (10800rpm) by only an application of a 60 Hz commercial source. It is noted that the motor has no semiconductor device and a brushless structure.},
 pages = {3020--3022},
 title = {New high-speed induction motor driven by a commercial source},
 volume = {23},
 year = {1987}
}