A rotary electric machine having a superconducting rotor and bearings, which utilize the magnetic solid property of an inhomogeneous hard superconducting material, for forming an a.c. generator or motor.
申请公布号
US3673444(A)
申请公布日期
1972.06.27
申请号
USD3673444
申请日期
1970.10.09
申请人
HITACHI LTD.
发明人
USHIO KAWABE;HIROSHI KIMURA;HIROSHI TOMEOKU;TOSHIO DOI
