The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 2004
Filed:
Apr. 15, 2003
Applicant:
Inventors:
Kenji Narita, Kawasaki, JP;
Takushi Fujioka, Kawasaki, JP;
Yusuke Kikuchi, Kawasaki, JP;
Akihiro Ito, Kawasaki, JP;
Youichi Tanabe, Kawasaki, JP;
Yuji Souma, Kawasaki, JP;
Ken Maeyama, Kawasaki, JP;
Michihiro Shibamoto, Kawasaki, JP;
Nopporn Jirojjaturonn, Kawasaki, JP;
Chanaporn Thanathitipong, Kawasaki, JP;
Assignee:
Fujitsu General Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 1/22 ;
U.S. Cl.
CPC ...
H02K 1/22 ;
Abstract
A radial-air-gap induction motor is constituted so as to have two air gaps by setting a rotor between a cylindrical outer stator and inner stator in order to improve an efficiency by increasing the ratio of torque/(square of current) by a two air gaps, apply windings for generating a rotating magnetic field to the outer and inner stators, and form squirrel-cage windings on the rotor.