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:
Oct. 02, 2001
Filed:
Mar. 31, 1998
Kenichiro Nishi, Kanagawa, JP;
Mitsuru Nukui, Toyama, JP;
Shirou Murai, Toyama, JP;
Kazuo Nakajima, Toyama, JP;
Toyotaka Wada, Toyama, JP;
Nippei Toyama Corporation, Tokyo, JP;
Abstract
A workpiece receiving hole,for fittingly receiving a workpiece,is formed in the center of a rotary disk,which is thinner than the workpiece,. A workpiece drive section,which engages a notch,formed for the purpose of orienting the workpiece,relative to crystal orientation is formed along the brim of the hole,. A gear,is rotated by a gear,of a motor,, thereby rotating the rotary disk,and imparting torque to the workpiece,. Accordingly, both surfaces of the workpiece are ground by means of a double disc surface grinder.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile