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:
Sep. 12, 2000
Filed:
Apr. 02, 1999
Shunji Hakomori, Ayase-shi, JP;
Hitoshi Nagayama, Ayase-shi, JP;
Other;
Abstract
A single side work polishing apparatus rectifies the surface geometry of a polishing pad during the polishing of a work. A correction roller is mounted to a pressure member that pushes a work against a polishing pad held by a rotating surface plate. The correction roller has a length substantially equivalent to the width of the working area of the polishing pad and is arranged along the radial direction of the surface plate. During polishing, the work and the correction roller are pressed against the polishing pad by the pressure member. The correction roller rotates about its longitudinal axis to rectify the polishing pad while the work is being polished.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile