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:
Sep. 03, 1996
Filed:
Dec. 22, 1993
Tamotsu Nose, Nagano, JP;
Kabushiki Kaisha Sankyo Seiki Seisakusho, Nagano, JP;
Abstract
In an electric motor, in order to simplify the structure and to remarkably improve the T/N characteristic value, yoke plates mounted on a field magnet are so shaped that the total magnetic flux of the field magnet is collectively extended to the iron core of the armature with its direction repeatedly reversed. That is, in the motor, the multi-polarization is substantially obtained by designing it in such a manner that the total magnetic flux of the field magnet is not dispersed but concentrated. Hence, in the motor, unlike a conventional motor, the field magnet is not subjected to multi-polar magnetization, and the armature side is simplified in structure, and the magnetic flux from the field magnet is maximaly utilized at all times, so that the number of magnetic poles and the effective flux .PHI. are both increased.