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.

Date of Patent:
May. 27, 2003

Filed:

Jul. 26, 1999
Applicant:
Inventors:

Nobushige Korenaga, Utsunomiya, JP;

Ryuichi Ebinuma, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 2/762 ; G03B 2/742 ; G03B 2/732 ; G03B 2/114 ; A61N 5/00 ;
U.S. Cl.
CPC ...
G03B 2/762 ; G03B 2/742 ; G03B 2/732 ; G03B 2/114 ; A61N 5/00 ;
Abstract

A stage system includes a stage being movable in a predetermined direction, a first unit for applying a force to the stage in the predetermined direction, a moving mechanism for moving one of the first unit and a structure including the first unit, a first measuring system for measuring at least one of the position and movement amount of the stage, and a second measuring system for measuring at least one of the position and movement amount of one of the first unit and the structure, wherein the stage is controlled on the basis of a measured value of the first measuring system, and wherein the moving system is controlled on the basis of a measured value of the second measuring system.


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