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. 14, 2021
Filed:
Jul. 25, 2018
Creative Technology Corporation, Kawasaki, JP;
Masaru Ozawa, Kawasaki, JP;
CREATIVE TECHNOLOGY CORPORATION, Kawasaki, JP;
Abstract
An electrostatic workpiece-holding method includes an initialization step, a static elimination step, a workpiece setting step, a workpiece attracting step, and a workpiece release step. The initialization step is a step of applying a positive voltage to electrode of the electrostatic attracting part while applying a negative voltage to electrode. The static elimination step is a step of removing the static charge on the surface of the electrostatic attracting part. The workpiece setting step is a step of placing the workpiece in contact with the surface of the electrostatic attracting part. The workpiece attracting step is a step of interrupting the application of the positive voltage to electrode of the electrostatic attracting part and the application of the negative voltage to electrode. The workpiece release step is a step of applying the positive voltage to electrode of the electrostatic attracting part while applying the negative voltage to electrode.