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. 27, 2006
Filed:
Feb. 13, 2004
Nobushige Korenaga, Utsunomiya, JP;
Toshiya Asano, Utsunomiya, JP;
Nobushige Korenaga, Utsunomiya, JP;
Toshiya Asano, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A linear motor including a coil, a plurality of first magnet groups having polar directions disposed in periodically different directions, and a plurality of second magnet groups having polar directions disposed in periodically different directions. In a set including a predetermined magnet of the first magnet groups and a magnet of the second magnet groups, corresponding to the predetermined magnet, magnetization directions of the set of magnets have mutually different tilts with respect to the central axis of the coil. The coil includes a first coil effective to produce a Lorentz's force between the first coil and the first magnet groups, and a second coil effective to produce a Lorentz's force between the second coil and the second magnet groups.