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. 03, 1998
Filed:
Dec. 12, 1995
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ; H02K / ; H02K / ;
U.S. Cl.
CPC ...
310 91 ; 310 / ; 310 905 ;
Abstract
An inner rotor type scanner motor rotating a rotary polygon mirror for deflection scanning is composed of two units, a rotary unit and a stationary unit. Then balancing can readily be achieved on two planes of the rotary polygon mirror and a drive magnet of the motor. The rotary unit is arranged in such a manner that a motor housing holds a bearing of a rotary member to which the rotary polygon mirror and drive magnet are fixed, and the stationary unit is arranged in such a manner that a stator coil and a magnetic member are mounted on a base.