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:
Nov. 10, 2026
Filed:
Oct. 24, 2023
Disco Corporation, Tokyo, JP;
Masaru Nakamura, Tokyo, JP;
DISCO CORPORATION, Tokyo, JP;
Abstract
A holding jig has a plate shape and is interposed between a workpiece with a circular plate shape and a chuck table when the workpiece is held by the chuck table in a grinding apparatus including the chuck table and a grinding unit including a grinding wheel. The holding jig has a first surface, a second surface on the opposite side of the first surface, and an outer circumferential surface that connects the first surface and the second surface. An altered layer that reaches a central region of the second surface from a central region of the first surface is formed. The material of the main component of the holding jig is the same as the material of the main component of the workpiece.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile