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:
Jun. 26, 2001
Filed:
Jun. 23, 1998
Applicant:
Inventor:
Ryuichi Ebinuma, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/100 ; G03B 2/742 ;
U.S. Cl.
CPC ...
H01L 2/100 ; G03B 2/742 ;
Abstract
A linear motor includes a stator, a movable element scanningly movable for a predetermined stroke, relative to the stator, and an electromagnetic device for producing a drive force for moving the movable element in a scan direction and in a direction perpendicular to the scan direction. The electromagnetic device includes a coil unit and a magnetic unit. The coil unit has at least two first coils disposed in a predetermined stroke along the scan direction, for producing a force in the scan direction and a second coil disposed in a predetermined stroke for producing a force in a direction perpendicular to the scan direction.