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:
Aug. 15, 2006
Filed:
Apr. 28, 2005
Masaki Ohno, Kamakura, JP;
Masaki Ohno, Kamakura, JP;
Nippon Thompson Co., Ltd., Tokyo, JP;
Abstract
A position-control stage system is disclosed, which is enhanced in prolusion to turn a turntable relatively to a bed through a bearing and also improved in operating performances including high-speed traveling and high response, even with made as small as allowed in diametral dimension. To this end, a motor includes a primary side having armature windings lying on a circular flat surface of a first retainer member secured to the bed, and a secondary side having a field magnet secured on the turntable. The bearing has an outer race held in place with combination of the bed and the first retainer member, and an inner race held in place with combination of the turntable and a second retainer member.