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. 15, 2005
Filed:
Oct. 28, 2003
Tsuneo Takashima, Utsunomiya, JP;
Tsuneo Takashima, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Disclosed is a positioning system effective to cancel a moment reaction force, and it includes a movable portion and a reaction force absorbing mechanism for absorbing a propulsion reaction force to be produced by motion of the movable portion. A first distance between a reference plane and a gravity center position of the movable portion, being supported for movement along the reference plane, and a second distance between the reference plane and a gravity center position of the reaction force absorbing mechanism are made substantially equal to each other, and/or the second distance and a third distance between the reference plane and a motor movable element for propelling the movable portion along the reference plane are made substantially equal to each other.