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:
Dec. 25, 2001
Filed:
Mar. 31, 2000
Mitsuru Nukui, Toyama, JP;
Shirou Murai, Kanagawa, JP;
Michihiro Takata, Toyama, JP;
Tetsuo Okuyama, Kanagawa, JP;
Muneaki Kaga, Toyama, JP;
Toyotaka Wada, Kanagawa, JP;
Nippei Toyama Corporation, Tokyo, JP;
Abstract
A workpiece,formed of a circular thin plate is rotated about its center as an axis L,. Each of disk-shaped rotating grinding wheels,and,, while being rotated about an axis L,extending in a direction substantially parallel to the plane of the workpiece,and perpendicular to the radial direction of the workpiece,, is made to undergo relative feeding movement on both obverse and reverse surface sides of the workpiece,along an outer peripheral edge portion,of the workpiece,. Consequently, the outer peripheral edge portion,of the workpiece,is ground by an outer peripheral surface of each of the rotating grinding wheels,and,. In this case, it is preferred that two grinding wheels,and,for rough grinding and finish grinding be provided as the disk-shaped rotating grinding wheels, and that rough grinding and finish grinding are performed by the same station.