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. 31, 2001
Filed:
Jul. 21, 2000
Applicant:
Inventor:
Eijiro Koike, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B 1/00 ;
U.S. Cl.
CPC ...
B24B 1/00 ;
Abstract
A polishing machine comprise a support unit for horizontally supporting a work piece at an outer peripheral edge thereof, to be freely rotatable with a central axis thereof serving as a center of the rotation, a rotation driving unit for driving rotation of the work piece with the central axis thereof serving as a center of the rotation, a polishing plate provided to be opposite to a surface of the work piece and reciprocate along a direction of a diameter of the work piece, and pressed onto the surface of the work piece at a predetermined force and polishing cloth provided between the polishing plate and the surface of the work piece.