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. 21, 2020
Filed:
Feb. 27, 2017
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Kazuya Kikunaga, Tosu, JP;
Abstract
With prior art static electricity distribution measuring devices, there has been the problem that it has not been possible to measure the amount of electrostatic charge over a wide range at high spatial resolution and quickly. In the present invention, there are provided: a detection unitin which a plurality of sensors, provided upon a surface, move relatively along the surface of an electrostatically charged subjectto be measured, and detect potential changes generated by the distance to the surface of the measurement subject being changed; a reference distance measuring unit that measures the distance between the surface of the measurement subject and the surface of the detection unit; a distance adjustment unit that adjusts that distance so that it becomes a reference distance that is determined in advance; and a vibrating unit that causes the distance between the surface of the measurement subject and the surface of the detection unit to change upon a predetermined cycle.