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:
Jul. 17, 2007
Filed:
Aug. 06, 2001
Heui-jae Pahk, Bongchun-dong, Kwanak-ku, Seoul, KR;
Jong-ho Park, Icheon-si, Kyungki-do, Icheon-si, KR;
Heui-Jae Pahk, Bongchun-dong, Kwanak-ku, Seoul, KR;
Jong-Ho Park, Icheon-si, Kyungki-do, Icheon-si, KR;
Other;
Abstract
Provided is an ultra-precision positioning system. The system comprises a base, a motion stage movably provided to the top of the base, and first to sixth feeding mechanisms for moving the motion stage to have six degrees of freedom. The first to sixth feed mechanisms are fixed to the base and the motion stage, respectively. Each of the first to third feeding mechanisms has a piezo actuator and two elastic hinges provided at both sides of the piezo actuator. Each of the fourth to sixth feeding mechanisms has a piezo actuator, three hinge members, and a lever member with a notch hinge which operatively cooperates with the hinge members.