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. 05, 1985
Filed:
Jun. 03, 1982
Yoshiteru Takahashi, Yamakita, JP;
Masataka Ogawa, Atsugi, JP;
Fuji Photo Film Co., Ltd., , JP;
Abstract
A disc type brushless motor comprising a rotor provided with a field magnet having two or more poles, and a stator on which loop-like armature windings are flatly positioned opposite to the field magnet in quantity of two or more in the circumferential direction and in two stages or more in the radial direction. The stator is also provided with elements for detecting the poles of the field magnet. The armature windings are positioned so that they do not overlap in either the circumferential or the radial directions of the stator. One terminal of each armature winding is connected to a common line and the other thereof to a semiconductor rectifier. Each pole of the field magnet may consist of a plurality of segments in the form of a fan-like plate or a square plate.